Pilgrim Reaper (DUEA-EN099) [Duelist Alliance]

2 Level 6 monsters<br>This card gains 200 ATK and DEF for every DARK monster in either player's Graveyard. You can detach 1 Xyz Material from this card; each player sends the top 5 cards from their Deck to the Graveyard (or their entire Deck, if less than 5). You can only use this effect of "Pilgrim Reaper" once per turn.