Drytron Zeta Aldhibah (Rare)

Cannot be Normal Summoned/Set. Must be Special Summoned with a Drytron card's effect. You can Tribute 1 other Drytron monster or 1 Ritual Monster from your hand or field; Special Summon this card from your hand or GY in Defense Position, then you can add 1 Ritual Spell from your Deck to your hand. You cannot Special Summon monsters the turn you activate this effect, except monsters that cannot be Normal Summoned/Set. You can only use this effect of Drytron Zeta Aldhibah once per turn.