The Tablets of Ruin

When The Tablets of Ruin Enter creatures get -X/-X until end of turn. If X is 5 or more you may return a Legendary Creature from your graveyard to the battlefield with X 1/1 counters on it.

{2}{w/b},{t}:Exile target players Graveyard. Put a Taken counter on each card exiled this way. If there are 50 or more Taken counters on cards after this ability resolves for the rest of the game you may cast spells with taken counters on them without paying their mana cost. If spells cast this way would go to the