Psemilla, Meletian Poet 031/779

Oracle text

Whenever you cast your first enchantment spell each turn, create a 2/2 white Nymph enchantment creature token. At the beginning of each combat, if you control five or more enchantments, Psemilla gets +4/+4 and gains lifelink until end of turn. (Damage dealt by this creature also causes you to gain that much life.)