Song of Freyalise (Dominaria)

Enchantment Ñ Saga - (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II Ñ Until your next turn, creatures you control gain "{T}: Add one mana of any color."
III Ñ Put a +1/+1 counter on each creature you control. Those creatures gain vigilance, trample, and indestructible until end of turn.