Noxious Assault 
Sorcery
$0.31 #7927 0.32 3.8 years
Creatures you control get +2/+2 until end of turn. Whenever a creature blocks this turn, its controller gets a poison counter.
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Cards similar to Noxious Assault expected a card that isn't here?
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Retaliation72%
$0.17↓#24956↓0.21↓28.1 years↑
"Creatures you control have "Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn.""
Prologue to Phyresis72%
$0.41↑#2672↑0.55↑3.8 years
"Each opponent gets a poison counter."
Viashino Weaponsmith71%
$0.16↓#31960↓0.00↓28.1 years↑
"Whenever this creature becomes blocked by a creature, this creature gets +2/+2 until end of turn."
Deepwood Wolverine70%
$0.32↑#31059↓0.3527.1 years↑
"Whenever this creature becomes blocked, it gets +2/+0 until end of turn."
Slashing Tiger70%
$79.49↑#32076↓0.00↓27.5 years↑
"Whenever this creature becomes blocked, it gets +2/+2 until end of turn."
Snorting Gahr70%
$0.14↓#32226↓0.13↓27.1 years↑
"Whenever this creature becomes blocked, it gets +2/+2 until end of turn."
Razorclaw Bear70%
$29.53↑#21160↓0.00↓28.4 years↑
"Whenever this creature becomes blocked, it gets +2/+2 until end of turn."
Trained Cheetah70%
$10.42↑#32488↓0.00↓27.5 years↑
"Whenever this creature becomes blocked, it gets +1/+1 until end of turn."
Deeproot Warrior70%
$0.12↓#28641↓0.00↓9.1 years↑
"Whenever this creature becomes blocked, it gets +1/+1 until end of turn."
Norwood Warrior70%
$0.60↑#30546↓0.00↓28.4 years↑
"Whenever this creature becomes blocked, it gets +1/+1 until end of turn."