Festival Crasher 
Creature — Devil
$0.18 #20255 0.00 5.1 years
Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn.
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Kiln Fiend100%
$0.11↓#172480.0616.5 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn."
Fire Urchin100%
$0.05↓#25748↓0.008.0 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +1/+0 until end of turn."
Wee Dragonauts100%
$0.06↓#187060.28↑20.8 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Mercurial Geists100%
$0.03↓#26102↓0.0610.2 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn."
Aven Wind Mage100%
$0.11↓#233410.33↑8.3 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn."
Ghitu Amplifier95%
$0.12↓#25814↓0.004.1 years
"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Erratic Cyclops95%
$0.15↓#186930.19↑8.0 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +X/+0 until end of turn, where X is that spell's mana value."
Charmbreaker Devils94%
$0.17↓#7555↑0.11↑15.1 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +4/+0 until end of turn."
Aberrant Manawurm94%
$0.16↓#231710.050.5 years↓
"Whenever you cast an instant or sorcery spell, this creature gets +X/+0 until end of turn, where X is the amount of mana spent to cast that spell."
Blistercoil Weird94%
$0.25↑#229410.0714.0 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn. Untap it."
Pyre Hound93%
$0.07↓#193390.19↑10.5 years↑
"Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature."
Electrostatic Infantry93%
$0.34↑#6533↑0.074.1 years
"Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature."
Storm Skreelix92%
$0.20↑#185370.075.1 years
"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Spellrune Painter // Spellrune Howler92%
$0.14↓#209150.005.1 years
"Whenever you cast an instant or sorcery spell, this creature gets +2/+2 until end of turn."
Nivix Cyclops92%
$0.11↓#225810.0613.5 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn and can attack this turn as though it didn't have defender."
Frolicking Familiar // Blow Off Steam91%
$0.31↑#8567↑0.11↑3.1 years↓
"Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn."
Clever Lumimancer90%
$0.18#196890.21↑5.5 years
"Whenever you cast or copy an instant or sorcery spell, this creature gets +2/+2 until end of turn."
Lorehold Pledgemage90%
$0.17↓#27955↓0.005.5 years
"Whenever you cast or copy an instant or sorcery spell, this creature gets +1/+0 until end of turn."
Umara Mystic90%
$0.17↓#207710.006.1 years
"Whenever you cast an instant, sorcery, or Wizard spell, this creature gets +2/+0 until end of turn."
Fluxcharger88%
$0.15↓#28428↓0.0013.5 years↑
"Whenever you cast an instant or sorcery spell, you may switch this creature's power and toughness until end of turn."