Sera, the Righteous

+2: Put a 4/4 white angel creature token with flying into play for each land you control.
+2: Human and Angel creatures you control gain indestructible, hexproof, and first strike until end of turn.
-12: Put X 4/4 white angel creature tokens with flying, lifelink, hexproof and indestructible into play for each human and angel creature you control.