Ramosian Rally 
Instant
If you control a Plains, you may tap an untapped creature you control rather than pay this spell's mana cost. Creatures you control get +1/+1 until end of turn.
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyLEGALvintageLEGALcommanderLEGAL