Auriok Steelshaper 
Creature — Human Soldier
Equip costs you pay cost less.
As long as this creature is equipped, each creature you control that's a Soldier or a Knight gets +1/+1.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL