Let The Scoring Commence!
Criteria
I will be using the following scoring categories:
Fun: This category is for two things - how much would I look forward to building a deck around your card... and how much would I groan if I saw someone else using it as their commander.
Accuracy: How much does your card stick to my prompt? Does it feel like you taped "cares about names" onto your card?
Creativity: How out there is your card? This primarilly exists to reward people who went for crazier card ideas.
Elegance: How clunky is your card? Does it have any extraneous mechanics or other oddness?
Flo00 - Lobo the Monopolist Lobo the Monopolist 
Legendary Creature - Vedalken Wizard
Whenever a nonland nonlegendary permanent enters the battlefield under your control, gain control of all permanents with the same name as that permanent.
1/3
Fun (B) :- Like you said, this guy would be fun to play clones with. I could also see some janky token strategies. My one concern is that you'll end up stealing stuff like Sol Rings and other staples, but my stance is that that's a good thing - it pushes your group's deck-building.
Accuracy (A) :- This takes my prompt and executes it pretty well. I'm hard-pressed to think of a way of pulling off this effect without checking names.
Creativity (B) :- Lobo's effect on deck-building is pretty interesting - both in terms of how you build your decks and how your opponents will end up building around him.
Elegance (A) :- Can't get much more elegant than a single triggered ability. I was going to complain about the nonlegendary clause, but then I remembered that cloning a legendary permanent gives you a legendary permanent, so...
Overall: (B+) [3.5]
The Inexorable Blob 
Legendary Creature - Ooze
Hexproof
The Inexorable Blob gets +2/+2 for each creature named Blob onto the battlefield.
Whenever The Inexorable Blob deals damage to a creature that creature loses all abilities and becomes a 1/1 green Ooze creature named Blob with indestructible.
1/5
Fun (C) :- This guy doesn't pull in very many directions - it screams voltron, but other than that it's pretty open. I wouldn't mind playing against this guy too much - a blocker with First Strike ruins its day, among other things.
Accuracy (B) :- You could have designed this guy to just care about Oozes, but caring about Blobs is much more flavorful, and doesn't stand out as too weird.
Creativity (A) :- Permeating Mass is a card I love quite a lot - combining it with a Relentless Rats effect just feels so right that I'm kinda embarrassed that I didn't think of it first.
Elegance (D) :- Unfortunately, you're going to suffer on this one. I'm not seeing where Red or Black factor into this card at all - heck, you could have all of those abilities in mono-Green. I'm also questioning the choice of Hexproof over Indestructible - your "unstoppable" ooze dies to a single blocker with deathtouch. But that's less of an issue than the colors.
Overall: (C+) [2.5]
Lazav, Lethal Silhouette 
Legendary Creature - Shapeshifter
, Sacrifice another creature: Creature spells you control and creature cards you own that aren’t on the battlefield become a copy of Lazav, Lethal Silhouette until end of turn.
Grandeur — Discard another card named Lazav, Lethal Silhouette: Lazav becomes a copy of another target creature until end of turn.
2/4
Fun (C) :- Huh. A UB commander that encourages you to run a ton of creatures. That's pretty distinctive. On the other hand, it doesn't really care about what those creatures are, so that's less interesting.
Accuracy (A) :- Grandeur is pretty much the kind of thing I asked for. So good on you.
Creativity (A) :- You made a Grandeur effect usable in Commander. My hat is off to you.
Elegance (C) :- That first ability is, unfortunately, janky as hell. Additionally, the "creature spells you control" clause is weird - I'm not actually entirely sure what happens when that spell resolves.
Overall: (B) [3.0]
Lucien Maroux Legendary Creature - Human Citizen
As Lucien Maroux enters the battlefield, choose a nonland card name. For each conspiracy you own this name counts as chosen in addition to the name chosen at the start of the game.
"Have you seen the chairman's new tie? Time to create a new scandal, he's basically begging for it."2/3
Fun (A) :- This guy can work magic with some of the Hidden Agenda cards. Unfortunately, those are reasonably niche... but if your group allows them, they still add another level of strategy to the whole game. If your group doesn't, you aren't playing with this guy.
Accuracy (A) :- Pretty good here - naming fits in here neatly and logically.
Creativity (B) :- This was going to be lower (due to just being a "twice the number of things" effect), but then I realized that it's much more dynamic than that - flicker Lucien and pick a new set of names. Plus, it frees you up to name Lucien for ALL of your Conspiracies, secure in the knowledge that you can adjust your choices later.
Elegance (A) :- Pretty neat and tidy. Good job.
Overall: (A-) [3.75]
Myst, the Ultimus Legendary Creature - Illusion
~ is every creature type (even if this card isn’t on the battlefield).
~ has all names of nonlegendary creature cards in addition to its name
(even if this card isn’t on the battlefield).
3/3
Fun (C) :- Hmm... This is just like Mistform Ultimus in terms of deck building, except you can mix in some "care about other creatures with the same name" cards. Unfortunately, most of those aren't in Blue.
Accuracy (A) :- When the only reason your card isn't a slightly-harder-to-cast version of another legendary is that it has all the names, that certainly qualifies.
Creativity (D) :- Like you said - this is literally just blending two creatures together. It's just kinda... there.
Elegance (A) :- There is, however, a certain elegance to "it has all the names, and all the types".
Overall: (B-) [2.75]
Vanisher of Names 
Legendary Creature - Shapeshifter
As Vanisher of Names enters the battlefield, choose a nonland card name.
Pay 1 life,
: Choose a nonland card name.
Permanents and permanent spells with the chosen names have no abilities and no card types, and nonpermanent spells with the chosen names can't be cast.
3/3
Fun (F) :- God no. I've played against a deck that mass-produced Phyrexian Revokers before, and I would have prefered to get my wisdom teeth removed again - at least I would have had drugs to numb the pain. The one saving grace here is that this guy is ultra-expensive. It's my fault, admittedly, because...
Accuracy (A) :- I did suggest Meddling Mage, didn't I? And Vanisher is that card on crack.
Creativity (C) :- It's a pretty logical extension of Meddling Mage et al.
Elegance (B) :- The one bit that I'd question is how cheap picking additional names is. But otherwise, I'm not seeing too many other problems.
Overall: (C+) [2.25]
Rial, the Reincarnater Legendary Creature - Human Advisor
Deathtouch, Haunt
Haunted creatures are named "Rail, the Reincarnater" and has "When this creature dies, put all cards haunted or cyphered into it into their owner's hands."
, pay 4 life: The next instant or sorcery you cast this turn gains cypher.
3/3
Fun (B) :- Cypher and Haunt make a cute couple - it gives you a nice "cards in exile" theme that you can build around. Plus, you've got a nice engine for returning cyphered cards to your hand.
Accuracy (D) :- Unfortunately, it looks like you just glued on the name change to satisfy the requirements. So you aren't going to be getting an amazing score here, I'm afraid.
Creativity (B) :- Like I said, it's a cute couple of mechanics, and it's nice to see an Esper commander that isn't "I love artifacts". The way things bounce back is also nice - it gets across your theme of reincarnation quite well.
Elegance (C) :- Barring your templating issues, you're mostly fine. However, I'm a not entirely sure that activated ability needs to cost that much - you could get away with dropping that life cost, I think.
Overall: (C+) [2.25]
Wrin, Vortex of Potential Legendary Creature - Elemental
As Wrin, Vortex of Potential enters the battlefield, choose a nonland card name.
Spells you control with the chosen name can't be countered by spells or abilities.
Whenever you cast a spell with the chosen name, if it's an instant or sorcery spell, copy it. Otherwise, as it enters the battlefield this turn, create a token that's a copy of it.
3/3
Fun (B) :- On the one hand, this guy can sub for Riku of Two Reflections with minimal trouble (put some more flickering and bounce in your 99, and you're set). On the other, Riku is a pretty versatile commander, so...
Accuracy (A) :- This definitely did what I was asking for, yep.
Creativity (B) :- I mentioned before that Wrin is essentially an alt-version of Riku... but there's enough of a difference that it's obvious that you didn't just tweak some numbers. Restricting the copy effect to a specific name is actually quite clever, since it forces you to work out your own workarounds.
Elegance (C) :- Unfortunately, I'm going to have to mark you down here. Your rules text is pretty damn long - it's hard for the rest of the table to see what Wrin does at a glance. Besides, I feel that a 3/3 for 3 with this big of an upside is pushed.
Overall: (B) [3.0]
John Jacob Jingleheimer Schmitt Legendary Creature- Human
John Jacob Jingleheimer Schmitt has all card names.
(Whenever an effect refers to a card by name, John is treated as though that was his name)
His name is my name too...1/2
Fun (C) :- I'm giving JJJS better marks than I normally would because he makes certain cards actually usable in EDH. Heck, there are a lot of really interesting combos with him (Assembly Hall, Spellweaver Helix, Twinning Glass). The only issue I have is that he probably should have a non-land clause, and that there are a few REALLY abusive combos with him (Echoing Truth is a boardwipe for 2, Bazaar of Wonders auto-counters everything...).
Accuracy (A) :- Can't fault you here.
Creativity (A) :- We've seen "~ has the name of all creatures" before, but not "~ has the name of all cards". As I mentioned earlier, this opens up a ton of possible combos.
Elegance (A) :- No problems here.
Overall: (B+) [3.5]
Thexos, Lord of Parchment Legendary Creature - Human Advisor
Whenever you would name a card or choose the name of a card, you may name two cards or choose two names instead
(The effect that caused you to name a card or choose a name applies to both names).
2/2
Fun (C) :- There's pretty much one deck you can build with this guy - and it has a lot of targeted discard, counters, and Surgical Extraction effects. And that's decent enough, I'd say. There's also some lost potential due to a lack of interaction with the "cares about names" cards from the Conspiracy sets. Which is a shame, because he seems like the kind of legend you'd see in one of those sets.
Accuracy (A) :- It's a Doubling Season for names - it'd be hard to be more name-related than that.
Creativity (C) :- Unfortunately, it's a Doubling Season for names. On the list of "things to do to boost a mechanic", that's right up there with "make it cheaper".
Elegance (A) :- Fortunately, you can't get much more elegant than a doubling effect.
Overall: (B) [3.0]
Rolling Sap Legendary Creature - Saproling
Rolling Sap counts as a token creature.
Creature tokens you control named Saproling get +1/+1.
,
: Creature a 1/1 green Saproling creature token.
2/2
Fun (B) :- It's a Saproling commander that you can drop turn two. I approve. He does seem more like a member of Ghave's 99, though.
Accuracy (D) :- There's absolutely no reason for this card to care about names other than "that's the prompt". Replacing the middle ability with "Other Saproling creatures you control get +1/+1" wouldn't change how this guy plays at all.
Creativity (C) :- This guy's just a lord and a token maker - I'm not getting a sense of why they're Legendary.
Elegance (D) :- You're losing quite a few points here. Both for the whole "this is a token creature" thing, which is really odd - unless you're abusing stuff like Mirror Gallery + Populate, there's absolutely no reason for that to be there. Also, I'm docking you for the janky anthem again.
Overall: (C-) [1.75]
@miku - Uryt of the Overused Words
Uryt of the Overused Words Legendary Creature — Human Wizard
At the beginning of your upkeep, look at the top card of your library. If it’s a card with a name that contains ‘Blast,’ ‘Dragon,’ ‘Fire,’ ‘Flame,’ ‘Lightning’ and/or ‘Ruin,’ you may play that card without paying its mana cost.
2/1
Fun (A) :- The irony here is that there aren't that many good mono-red commanders for burn. So this guy already opens up some build choices. Besides, you have your pick from 300+ red cards, so there's no shortage of versatility here. The one issue is that you're going to be a removal magnet, which is fine.
Accuracy (A) :- This definitely is an excellent rendition of "cares about names". Good work.
Creativity (B) :- I'm going to go out on a limb and say that this world is poorer because Uryt wasn't in the last un-set. Good stuff.
Elegance (A) :- Uryt is a devastatingly simple card with a lot of power.
Overall: (A-) [3.75]
Korla, Doom Speaker Legendary Creature - Human Wizard
As Korla, Doom Speaker enters the battlefield, choose five card names.
At the beginning of your upkeep, search your library for a card with a name chosen with Korla, reveal it, put it into your hand, then shuffle your library. You lose life equal to a fifth of your starting life total, rounded up.
3/3
Fun (B) :- Holy. Crap. My brain is warring over whether or not I love this card (due to the pure combo fuel) or hate this card (because it's going to lead to really same-y games). It's also the epitome of suicide black - you have five turns to win from when you drop Korla.
Accuracy (A) :- You don't just use one name, you use five! That's just plain lovely.
Creativity (C) :- This is a pretty standard black effect - it's basically just Dark Confidant on steroids. I knocked you down a notch for not making it six and one-sixth, because that was just a missed opportunity.
Elegance (B) :- You're asking people to do division in their happy-fun-game time. Plus... memory problems, your name is Korla. I hope you wrote those names down.
Overall: (B) [3.0]
norench - Irritable Vowel Syndrome/There are some who might call me Tim. Both of these are invalid entries - this is a game for creating Commanders, so you should have entered a legendary creature. Better luck next time. Besides, the quote is "There are some who call me... Tim?", so no points for that reference.
Overall: (F) [0.0]
In summary, we have a tie for first place between
Daij_Djan and @miku . However, I'm going to be giving the win to
miku - Daij, you'll just have to console yourself with your literal mountain of trophies.
Also in summary - I hate all of the people who only posted a render. Thanks for the carpal tunnel pains, folks.
"When in doubt, do a common." 
