Ultimate Masters: World Championship Tournament 2006 2006-02-23 Samsara (World Championship 2007) Yu-Gi-Oh
return all monsters on the field to their respective owner's Deck, then both players excavate the top card on their Deck, and if that card is a Spirit monster, Special Summon that card in face-down Defense Position, ignoring its Summoning conditions.[/spoiler] [spoiler=Kirin] Cannot be Special Summoned
on play, making it a versatile tool
Not only does this synergize well with mana rocks and other artifacts with activated abilities, but it simultaneously functions as damage-based removal, a means of closing out a game, and a means of digging through your deck for key cards
If you've had a chance to check them out, hopefully you'll agree