Ring of Destruction [BP01-EN050] Rare Synchro/Tuner Monster You can only use this

You can only use this effect of "Subterror Behemoth Umastryx" once per turn

Destroy the attacking monster

you can send this card to the Graveyard to inflict 1000 damage to your opponent for each of your Standby Phases that have passed since this card was activated

Set: Legacy of the Valiant Card type: Effect Monster Rarity: Ultra Rare Attack: 1000 Defense: 1000 When this card you control is destroyed by battle with an opponent's attacking monster and sent to your Graveyard: You can Special Summon 1 "Gravekeeper's" monster from your Deck in face-down Defense Position

• Electromagnetic Turtle

Ring of Destruction [BP01-EN050] Rare Synchro/Tuner Monster You can only use thisSet: Battle Pack: Epic Dawn Card type: Normal Trap Rarity: Rare Target 1 face up monster on the field; destroy that target, and if you do, inflict damage to both players equal to that target's ATK.