Bull's Strength 
Instant
Target creature gets +2/+2 and gains trample until end of turn. Untap it.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Instant
Target creature gets +2/+2 and gains trample until end of turn. Untap it.