Caius the Shadow Monarch [SR01-EN004] Common XY210 destroy Helm of Isen's Peak:

destroy Helm of Isen's Peak: Your hero gains +1 [Intellect] until end of turn

If a Machine Xyz Monster(s) you control is destroyed by battle or an opponent’s card effect while this card is in your GY: you can banish this card and 1 Machine Xyz Monster in your GY

Set: Savage Strike Card type: Effect Monster Rarity: Secret Rare Attack: 2400 Defense: 1800 If your opponent Special Summons a Link Monster(s) (except during the Damage Step): You can Special Summon this card from your hand

Set: Black & White: Emerging Powers Type: Fighting Rarity: Rare Retreat cost: Colorless

Set: EX: Delta Species Type: Lightning Rarity: Promo Retreat cost: Colorless

Caius the Shadow Monarch [SR01-EN004] Common XY210 destroy Helm of Isen's Peak:Set: Structure Deck: Emperor of Darkness Card type: Effect Monster Rarity: Common Attack: 2400 Defense: 1000 If this card is Tribute Summoned: Target 1 card on the field; banish that target, and if you do, inflict 1000 damage to your opponent if it is a DARK monster.