Retaliation 
Enchantment
Creatures you control have "Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn."
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL
Enchantment
Creatures you control have "Whenever this creature becomes blocked by a creature, this creature gets +1/+1 until end of turn."