Drytron Gamma Eltanin (Super Rare)

Cannot be Normal Summoned/Set. Must be Special Summoned with the effect of a Drytron card. 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 Special Summon 1 Drytron monster with 2000 ATK from your GY, except Drytron Gamma Eltanin. You cannot Special Summon monsters, except monsters that cannot be Normal Summoned/Set, the turn you activate this effect. You can only use this effect of Drytron Gamma Eltanin once per turn.