Dhampir Vampire Sheridan (DASA-EN007)

2+ Level 6 monsters

If you use a monster(s), with a Level, that is owned by your opponent for the Xyz Summon of this card, treat it as Level 6. Once per turn: You can detach 1 material from this card, then target 1 card your opponent controls; send it to the GY. Once per turn, if a Monster Card(s) is sent from the field to your opponent's GY by a card effect, or a monster is destroyed by battle and sent to your opponent's GY: You can detach 1 material from this card; Special Summon 1 of those monsters to your field in Defense Position.

Zombie / Xyz / Effect, Dark Saviors