Riverfall Mimic 
Creature — Shapeshifter
$0.12 #31446 0.00 18.1 years
Whenever you cast a spell that's both blue and red, this creature has base power and toughness 3/3 until end of turn and can't be blocked this turn.
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Battlegate Mimic84%
$0.09↓#261210.0018.1 years
"Whenever you cast a spell that's both red and white, this creature has base power and toughness 4/2 until end of turn and gains first strike until end of turn."
Shorecrasher Mimic82%
$0.18↑#304220.0018.1 years
"Whenever you cast a spell that's both green and blue, this creature has base power and toughness 5/3 until end of turn and gains trample until end of turn."
Gloryscale Viashino78%
$0.12#24402↑0.0017.3 years
"Whenever you cast a multicolored spell, this creature gets +3/+3 until end of turn."
God-Pharaoh's Faithful77%
$0.18↑#20827↑0.009.1 years↓
"Whenever you cast a blue, black, or red spell, you gain 1 life."
Quirion Dryad76%
$0.10↓#25014↑0.35↑25.6 years↑
"Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on this creature."
Nightsky Mimic75%
$0.18↑#303200.18↑18.1 years
"Whenever you cast a spell that's both white and black, this creature has base power and toughness 4/4 until end of turn and gains flying until end of turn."
Ant-Man, Reformed Rogue74%
$0.24↑#264560.000.2 years↓
"Whenever you cast a blue spell, this card gets -1/-0 until end of turn and can't be blocked this turn."
Incursion Specialist72%
$0.14↑#279780.0013.6 years↓
"Whenever you cast your second spell each turn, this creature gets +2/+0 until end of turn and can't be blocked this turn."
Questing Druid // Seek the Beast72%
$0.36↑#8502↑0.33↑3.0 years↓
"Whenever you cast a spell that's white, blue, black, or red, put a +1/+1 counter on this creature."
TVA Bureaucrat71%
$0.12#304610.000.2 years↓
"Whenever you cast a noncreature spell, this creature gets +1/+0 until end of turn and can't be blocked this turn."
Elusive Spellfist71%
$0.12#18971↑0.24↑11.4 years↓
"Whenever you cast a noncreature spell, this creature gets +1/+0 until end of turn and can't be blocked this turn."
Mage Tower Referee71%
$0.06↓#23810↑0.000.4 years↓
"Whenever you cast a multicolored spell, put a +1/+1 counter on this creature."
Snowmelt Stag70%
$0.11↓#24197↑0.081.4 years↓
"During your turn, this creature has base power and toughness 5/2."
Zuko, Avatar Hunter70%
$0.59↑#13461↑0.000.8 years↓
"Whenever you cast a red spell, create a 2/2 red Soldier creature token."
Hero of Precinct One70%
$0.25↑#8702↑0.27↑7.6 years↓
"Whenever you cast a multicolored spell, create a 1/1 white Human creature token."