Strength of Solidarity is a common Sorcery card from Zendikar Rising (ZNR), collector number 206. Current market price: $0.11 (foil $0.11), TCGplayer market prices via Scryfall.
Choose target creature you control. Put a +1/+1 counter on it for each creature in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.)