You can Ritual Summon this card with any "Nekroz" Ritual Spell. Must be Ritual Summoned, using monsters, and you cannot use Level 10 monsters. You can only use each of these effects of "Nekroz of Decisive Armor" once per turn. ● (Quick Effect): You can discard this card, then target 1 "Nekroz" monster you control; it gains 1000 ATK/DEF until the end of this turn. ● You can target 1 Set card your opponent controls; destroy it, and if you do, banish it.