The Pyramid of Kepher

Send 1 Zombie Ritual Monster from your Deck to the GY; place 1 Field Spell from your Deck or GY face-up on your field, also you cannot activate non-Zombie monster effects for the rest of this turn after this card resolves. If your opponent controls an Effect Monster: You can banish this card from your GY, then target 1 Ritual Monster in your GY; add it to your hand. You can only use each effect of "The Pyramid of Kepher" once per turn.