Zealous Strike 

Instant
Target creature gets +2/+2 and gains first strike until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Target creature gets +2/+2 and gains first strike until end of turn.