Multiple Card Challenge

{winner}gluestick248

{gateways7}Banisher of Thought: Pretty strong card. This prevents almost all search effects, aside from black's straightforward "Search your ibrary for a card." But it doesn't stop there. It also makes card that let you play from the top of your library useless and also the "mini-tutors" that look at the top 5 or so cards. Abilities like kinship also won't work. It's kind of a super-duper-charged Aven Mindcensor. I think you took the list from Volrath's Shapeshifter and added something? I think making cards lose CMC is weird. It has no mana cost, why shouldn't it CMC be just 0? Also I think (but I'm not sure) making it lose subtypes is redundant when it loses it's types. You could make them lose supertypes and startin loyalty Or you just use the Volrath's Shapeshifter's way and say they lose their full text (+ put a reminder), then you can't miss anything.

Premonition Horror: Nice card. Art and flavour fit also very well. I like it.

Wintry Thicket: Usually cards specify from where something is exiled, so I think this should say "is put into exile from anywhere". It's kind of weird (the funny kind of weird) that the ability (at least if I interpret it right) triggers when Wintry Thicket is exiled, let's say from your hand but while it is on the battlefield if also triggers off other cards being exiled. It's a cute card on its own, but you couls also use it to build a theme into your deck.
I think Wintry THicket can go a bit dangerous with cards like Possibility Storm or Arc Slogger, but that's exactly what makes the combo work.

the combo: I had to think a bit to see what this was doing. It's genious. Especially because Banisher plus Premonition is a bombo on it's own since it doesn't do anything but shuffle an opponent's library. Also Thicket + Premonition usually lets your opponent optimize thair hand. (Unless they don't play anything with CMC 5+. In this case, the combo works with only two cards.)
It can a bit annoying to play it out though. SInce all the looting is a bunch of single triggers your opponent might insist on playing it out to search for an answer. Also if he has Nexus of Fate or Kozilek, Butcher of Truth they won't lose and it will be extremly annoying to play out.
I still really like the combo.

{gluestick248}Glitch Engine: This reminds me of Paradox Haze, but offers much more freedom for the cost of three mana. I imagined there was an easier way of abusing this than what you did, but I couldn't really find it. My best approach is Thran Turbine/‌22141703072Braid of FireBraid of Fire plus Filigree Sages. I imagine it can be very fun and interesting to take an upkeep after your end step or maybe after declare blockers to mess things up a bit.

Tolarian Vault: They exist up to three, so why not four as well. Sure.

Overclock Field: Just this enchantment in a vacuum is pretty weird. Why would I want to untap my artifacts when I just come out of untap? Sure there is a lot of good reasons. Mostly tap abilities, maybe something strange like Goblin Dirigible. It's still pretty strange to get an untap effect during upkeep.

Power Battery: It's a nice way to store mana. It would be quite powerful if it weren't for the artifact restriction. I don't really know why, but I somehow feel it should tap when it sacrifices. (Kind of like Chromatic Sphere.)

the combo: You can do quite a lot with this. Instead of using the battery you can just dunk the mana in some other 1 mana activation (let's say Carrion Ants for a start.) And if you have more artifacts that tap for mana (Hello Signets & Coalition Relic!) you can do even batter activations. Or you could just do infinite upkeep triggers. (Azor's Elocutors for the win!)
Your combo offers a wide range of possibilities of uses. Ireally like that. I also like the built-in "draw four cards" after you're done charging up the Battery.

{Daij_Djan}Magus of the Good: Clasic Magus. Making a powerful enchatnment into a creature. Works.

Bestial Rage: Nice colorshift. Very simple and straightforward.

Everlasting Samurai: Interesting version of Undying Beast/Dark Revenant. It's an interesting card, especially because with delve you want to do a lot of milling/excessive card drawing anyway.

the combo: It's fun way of combining different abilities. I like how you combined three cards of dofferent colors that feel right exactly where they are. When it comes to combining this with existing cards, I think the Magus can only be replaced by Greater Good and for Bestial Rage there are a few cards it can be replaced with, but I can't imagine any card the Everlasting Samurai can be replaced with.

{Yoshi}Field Researcher: Hello little brother of Fallowsage! Nice card, not too powerful, sure works. I'd like to play this in any blue limited deck.

Practical Application: Also a simple and not too strong card. You could just add it to any deck for a little untapping, or you could do a little more "build-around". (In quotation marks because blue usually does a lot of card drawing anyways.)

Mantle of the Dreamer: That's a really powerful aura. The closest real card I could find is Oracle's Insight. I still think this could see print. I like it.

the combo: A good valule engline. Mantle of the Dreamer + Practical Application on their own lets you draw a lot of cards already. (9 cards per turn if you only have Mantle and your draw step.) If you want to draw your whole library you could use the above mentioned Fallowsage.

{Jartis}Bell of the Order: Without the other two, this is like the Crown of Empires. So I guess it should also be an uncommon. I think this is ok on its own and (much like the Crown) a horror for your opponent if you have the other two.

Book of the Order: This is just too cheap. Arcane Encyclopedia is one of the newer cards that does this and every other cards is either more expensive or has some condition. Drawing three cards onf you get the combo life is also pretty nice. So I guess it sould be somewhere between the Encyclopedia and Jayemdae Tome.

Candle of the Order: And this is way to expensive for the effect. There are things like Telepathy and Lantern of Insight. (Ok, there are actually very few such things, but they are pretty cheap.) I'd do this for just and no mana when you tap it. Maybe make the reveal your hand when it is on its own and make a discard when you have the other two? (And since they are already revealing their hand, maybe it lets you choose which one they discard.)

I left out "the combo" section I did in the others since I already mentioned these things at the feedback to each individual card.

{Winner}Flo00 wins! Congratulations