Tiras, Keeper of Genesis [BP01-EN029] Starfoil Rare Power of the Duelist you can negate the activation

you can negate the activation of 1 Spell Card and destroy the Spell Card by discarding 1 card from your hand

Set: EX: Emerald Type: Colorless Rarity: Uncommon Retreat cost: 0

by sending this card to the Graveyard while it''s equipped due to its effect

Set: Champion Pack 8 Card type: Effect Monster Rarity: Super Rare Attack: 1000 Defense: 1000 Once per turn

Set: EX: Crystal Guardians Type: Metal Rarity: Common Retreat cost: Colorless

Tiras, Keeper of Genesis [BP01-EN029] Starfoil Rare Power of the Duelist you can negate the activationSet: Battle Pack: Epic Dawn Card type: Xyz Effect Monster Rarity: Starfoil Rare Attack: 2600 Defense: 1700 2 Level 5 monsters. This card's effects can only be applied or activated while it has Xyz Material. This card cannot be destroyed by card effects. At the end of the Battle Phase, if this card attacked or was attacked: Target 1 card your opponent controls, destroy the target. During each of your End Phases: Detach 1 Xyz Material from this card.