Tiras, Keeper of Genesis [BP01-EN029] Starfoil Rare Phyrexian Dragon Skeleton Put one of them into

Put one of them into your hand and the other on the bottom of your library

You may cast spells with the same name as that spell from among the revealed cards without paying their mana costs

banish this card until the End Phase

Set: Alpha Edition Type: Artifact Rarity: Rare Cost: {2} Time Vault enters the battlefield tapped

Tiras, Keeper of Genesis [BP01-EN029] Starfoil Rare Phyrexian Dragon Skeleton Put one of them intoSet: 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.