Flaming Fist Duskguard 
Creature — Dwarf Soldier
When Flaming Fist Duskguard enters the battlefield, you get a boon with "When you cast your next creature spell, it perpetually gets +1/+0."
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL