Sword of the Soul-Eater [DR2-EN199] Common 228 You can only use each

You can only use each effect of "Return of the Red-Eyes" once per turn

Set: Structure Deck: Spellcaster's Command Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 The equipped monster gains 500 ATK and DEF for each Spell and Trap Card you control

No monsters can attack

or Special Summon

Sword of the Soul-Eater [DR2-EN199] Common 228 You can only use eachSet: Dark Revelation Volume 2 Card type: Equip Spell Rarity: Common Attack: 0 Defense: 0 You can only equip this card to a Level 3 or lower Normal Monster on your side of the field. When you activate this card, Tribute all Normal Monsters (except Tokens) on your side of the field, except the equipped monster. Increase the ATK of the equipped monster by 1000 points for each Normal Monster that Tributed.