yugioh grim reaper deck of the Cards (Yugioh Dark Beginning 1) Reaper of the Cards -

Graveyard When a card is discarded from your deck or destroyed on the field, or when a Spell/Trap resolves its Effect, it is sent to the Graveyard

LP cards jump slightly higher, though they tend to stay around $36 with NM copies commanding a small premium, fetching $45

Its ability, as long as you have at least 1 Tuner and 1 or more non-Tuner DARK monsters (with Dark End Dragon being a DARK monster itself), you can have it lose 500 Attack and Defense to send 1 monster your opponent controls to the Graveyard

Since theyre tokens, they interact with powerful threats like Adrix and Nev, Twincasters and Jaheira, Friend of the Forest

It turns life directly into mana, and that exchange has broken formats before