Leapfrog 
Creature — Frog
$0.05 #19075 0.24 7.9 years
This creature has flying as long as you've cast an instant or sorcery spell this turn.
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Umara Wizard // Umara Skyfalls87%
$0.19↑#14455↑0.145.9 years↓
"Whenever you cast an instant, sorcery, or Wizard spell, this creature gains flying until end of turn."
Silverquill Pledgemage80%
$0.14↑#26066↓0.00↓5.4 years↓
"Whenever you cast or copy an instant or sorcery spell, this creature gains your choice of flying or lifelink until end of turn."
Aven Wind Mage80%
$0.08↑#23016↓0.318.1 years
"Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn."
Fire Urchin80%
$0.07↑#25447↓0.62↑7.9 years
"Whenever you cast an instant or sorcery spell, this creature gets +1/+0 until end of turn."
Wee Dragonauts80%
$0.05#183580.2920.7 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Festival Crasher80%
$0.17↑#199950.224.9 years↓
"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Haunting Figment79%
$0.05#24504↓0.45↑4.0 years↓
"This creature can't be blocked as long as you've cast an instant or sorcery spell this turn."
Kiln Fiend79%
$0.10↑#169470.2716.4 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn."
Mercurial Geists79%
$0.04↓#25774↓0.2510.1 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn."
Fluxcharger76%
$0.10↑#28164↓0.06↓13.3 years↑
"Whenever you cast an instant or sorcery spell, you may switch this creature's power and toughness until end of turn."
Gust-Skimmer75%
$0.05#30694↓0.2715.6 years↑
": This creature gains flying until end of turn."
: This creature gains flying until end of turn."
Whiptongue Frog75%
$0.21↑#216060.12↓28.2 years↑
": This creature gains flying until end of turn."
: This creature gains flying until end of turn."
Manta Riders75%
$0.14↑#28936↓0.2528.9 years↑
": This creature gains flying until end of turn."
: This creature gains flying until end of turn."
Dukhara Peafowl75%
$0.07↑#30033↓0.60↑9.9 years↑
": This creature gains flying until end of turn."
: This creature gains flying until end of turn."
Cobalt Golem75%
$0.06↑#31353↓0.3322.9 years↑
"
: This creature gains flying until end of turn."
: This creature gains flying until end of turn."
Piston-Fist Cyclops74%
$0.07↑#28627↓0.00↓7.9 years
"As long as you've cast an instant or sorcery spell this turn, this creature can attack as though it didn't have defender."
Pyre Hound74%
$0.07↑#189830.00↓10.4 years↑
"Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature."
Electrostatic Infantry74%
$0.35↑#6376↑0.284.0 years↓
"Whenever you cast an instant or sorcery spell, put a +1/+1 counter on this creature."
Inkling Mascot74%
$0.07↑#212500.00↓0.4 years↓
"Whenever you cast an instant or sorcery spell that targets a creature, this creature gains flying until end of turn. Surveil 1."
Thistledown Duo72%
$0.08↑#30457↓0.07↓18.3 years↑
"Whenever you cast a blue spell, this creature gains flying until end of turn."