|"Horn of Valhalla", |"Cor du Valhalla", |"Alchemy Horizons: Baldur's Gate" (2)
Equipped creature gets +1/+1 for each creature you control.
Equip
Create X 1/1 white Soldier creature tokens. (Then exile this card. You may cast the artifact later from exile.)
Gatherer works better in the Companion app!