Crown of Fury 
Enchantment — Aura
Enchant creature Enchanted creature gets +1/+0 and has first strike. Sacrifice this Aura: Enchanted creature and other creatures that share a creature type with it get +1/+0 and gain first strike until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL