Muddle the Mixture 2: Augstralian Kangafrog

Hmm. Don't know how to code the symbols on this new site, so let me see what I can do.

Bloodlord's Bolt
Instant
Choose one or both:
* Destroy target creature with power 3 or less
* This spell deals 3 damage to target creature

NEXT: Haunted Guardian + Sever Soul

Up: I like the demon tribal support. Adding "may" to the sacrifice cost makes it not really a drawback and also removes something that I though made the original demon interesting, but I understand that a 3-mana zombie doesn't really need to carry the weight of a 7-mana archdemon. 8/10.

Landform
Enchantment
When Landform enters the battlefield, it becomes an Aura with enchant land. Search your library for a basic land card, put it onto the battlefield tapped, and attach Landform to it. Then shuffle your library.
Enchanted land is a 3/3 green Elemental creature with trample. It’s still a land.

The next cards are Azorius Signet and Sphinx's Decree.

Up: It's a strong card. I guess it's good at . After you cast it once, your opponent will be aware of it and will try to play around it somehow by casting cheap stuff first.

Monument of Extinction
Land
: Add to your mana pool.
, , Sacrifice Monument of Extinction: Each player sacrifices all colored permanents he or she controls. For each permanent sacrificed this way, its controller may search his or her library for an Island, Swamp or Mountain card and put it onto the battlefield tapped. Then each player shuffles their library. Activate this ability only as a sorcery.

Next: Sage's Dousing + Luminesce

Up: Eh, it's an interesting idea and a good muddle, but it'll only ever be sideboard tech. 7/10

Shifting Fealty
Enchantment
Pay 1 life: Tap target land you control and target land an opponent controls and exchange control of them. Any player can activate this ability, but only during their main phase.

Probably not a good muddle, but Uncards are really hard to muddle and this is where inspiration took me.

Whoops. Naya Sojourners + Stromkirk Mentor

Up: Weird, but you did the best you could with what you got. 7/10. 

Stromkirk Vanguard 
Creature - Vampire Soldier
Flying
Whenever CARDNAME deals combat damage to a player or you cycle it, put a +1/+1 counter on target Vampire you control.
Cycling
3/2

Next: Phantasmal Dragon and Harmonize

Up: Clever mix, but also seems a bit weak and the templating's weird, but I like it.

Mammoth Herd
Creature - Elephant
Mammoth Herd enters the battlefield with X +1/+1 counters on it.
Trample
If damage would be dealt to Mammoth Herd or another Elephant you control, instead prevent that damage and remove that many +1/+1 counters from Mammoth Herd. If you can't, sacrifice Mammoth Herd.
, remove a +1/+1 counter from Mammoth Herd: Create a 3/3 green Elephant token with trample.
: Prevent the next 1 damage that would be dealt to Mammoth Herd or target Elephant you control this turn.
: Put a +1/+1 counter on Mammoth Herd. Activate this ability only as a sorcery.
0/0

This design just kept getting weirder and weirder.

Next: Nakaya Shade and Raise the Alarm

Up: Definitely a Shade Soldier. I like it. Reminds me of the Rhystic cards. Could've been a 1/2, but you know what they say: what you get is what you're given...

Fanged Thug
Creature - Goblin Mutant
Trample
~ can't attack or block unless you control three or more creatures.
"He's too big, we need support... Hey, you two! Hold his back!"
-General Sataf
5/5

Next: Reverse Damage and Raging River

lol

Up: Interesting card, especially because it's symmetric. It's also a fun reverse to the Raging River. I think the biggest advantage is that attacking with only one creature won't do anything (except combined with Lure-abilities). I can imagine building a deck around this card.

Mawcor Enforcer
Creature - Beast Warrior
Flying, Level up 2/2
Level 1-2: Flying
: Mawcor Enforcer deals 1 damage to target nonblack creature. 3/3
Level 3+: Flying
: Mawcor Enforcer deals 2 damage to target creature. 5/5

Next: Duty-Bound Dead + Nacatl Hunt-Pride

Up: I'm not seeing much connection to Duty-Bound Dead here beyond the mana cost and a tenuous "one creature in combat" theme, but solid card regardless. I like the mirroring on the abilities on both this one and the original Nacatl Hunt-Pride, so I think it works.

Cask-Aged Gnomes
Artifact Creature - Gnome
Hexproof
Whenever a player is dealt combat damage, put a charge counter on ~.
Sacrifice ~: Gain 3 life for each charge counter on ~.
1/1

Next: Spirit of the Hunt + Mageta the Lion

Up: Not sure if undercosted, particularly because of the combination of one-sided mass destruction and Flash. Other than that, it's a solid design.

Haunting Wall
Creature - Wall
Defender
Whenever Haunting Wall blocks, exile a card from attacking player’s graveyard other than a basic land card. Whenever a card is exiled that way, search that player’s library for all cards with the same name as that card and exile them. Then that player shuffles their library.
0/7

Next Rally and Dive Bomber.

Up: If this was an enchantment, I could definitely see uses for it, especially if I had a Blitterblossom or whatnot, but as an instant it just seems too narrow.

Cabal's Carpet
Artifact
, : Target creature gets +2/+1 and gains flying until end of turn. Sacrifice it at end of turn.

Next: Dark Banishing + Megantic Sliver

UP: Not sure if a 6 mana 6/6 for a sliver is too strong. I mean the titans were already pretty strong and their effects were okay. This gets buffed from other slivers.

Boiling Fear   

Creature - Horror   

: Destroy target Island. If you do ~ gains intimidate.

3/2

Next: Combat Medic and Blighted Bat

Up: Nice card. I really like the combination of damage pervention plus haste. It might be a bit much as a two mana activation on an uncommon.

Zuran Specter ::R:
Creature - Specter
Flying, lifelink
Whenever Zuran Specter deals combat damage to a player, that player sacrifices a land at random.
2/2

Next: Island. No, let's reroll this one.
Smash + Guardian of Tazeem.