Electrostatic Field 
Creature — Wall
$0.96 #1587 0.28 7.9 years
Defender
Whenever you cast an instant or sorcery spell, this creature deals 1 damage to each opponent.
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Erebor Flamesmith100%
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"Whenever you cast an instant or sorcery spell, this creature deals 1 damage to each opponent."
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"Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent."
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"Whenever you cast an instant or sorcery spell, this enchantment deals 2 damage to each opponent."
Exalted Flamer of Tzeentch91%
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"Whenever you cast an instant or sorcery spell, this creature deals 1 damage to each opponent."
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$0.26↓#10648↓0.00↓0.4 years↓
"Whenever you cast an instant or sorcery spell, this creature deals 1 damage to each opponent. If five or more mana was spent to cast that spell, this creature deals 3 damage to each opponent instead."
Weaver of Lightning86%
$0.09↓#20557↓0.07↓10.1 years↑
"Whenever you cast an instant or sorcery spell, this creature deals 1 damage to target creature an opponent controls."
Firebrand Archer84%
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"Whenever you cast a noncreature spell, this creature deals 1 damage to each opponent."
Kessig Flamebreather84%
$3.31↑#14470.204.8 years↓
"Whenever you cast a noncreature spell, this creature deals 1 damage to each opponent."
Unruly Catapult82%
$0.34↓#4263↓0.203.0 years↓
"Whenever you cast an instant or sorcery spell, untap this creature."
+1 more matching line
Thermo-Alchemist82%
$0.16↓#17130.2210.1 years↑
"Whenever you cast an instant or sorcery spell, untap this creature."
+1 more matching line
Devoted Duelist82%
$0.13↓#12067↓0.10↓1.4 years↓
"Whenever you cast your second spell each turn, this creature deals 1 damage to each opponent."
Stinging Barrier81%
$0.13↓#26893↓0.3626.9 years↑
"Defender"
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."
Festival Crasher80%
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"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Kiln Fiend80%
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"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn."
Enraged Flamecaster80%
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"Whenever you cast a spell with mana value 4 or greater, this creature deals 2 damage to each opponent."
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"Whenever you cast an instant or sorcery spell, this creature gets +1/+1 until end of turn."
Wee Dragonauts80%
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"Whenever you cast an instant or sorcery spell, this creature gets +2/+0 until end of turn."
Mercurial Geists80%
$0.04↓#25774↓0.2510.1 years↑
"Whenever you cast an instant or sorcery spell, this creature gets +3/+0 until end of turn."
Blistering Barrier79%
$0.12↓#28229↓0.3629.9 years↑
"Defender"