Ancient Grudge The effect may not look that great, but what matters is its flashback ability the fact it works from the graveyard makes it extremely powerful
These are called room abilities. They can only be triggered as long as the dungeon is in play in the command zone and is controlled by the player who owns the dungeon
When it enters the battlefield, you roll dice onto the table from a specific height, and where they land determines which creatures get buffed and which ones get blasted
Necropotence [The Strongest Card Advantage Engine in Black] Necropotence replaces your draw step and lets you trigger an ability that pays life to set aside cards for your end step
That's plan A, but if that somehow is too slow, or someone finds a way to disrupt your strategy, a few creatures and Exsanguinate will help speeding things up
Compared to the Charm though this card does lack innate instant speed, but still serves the same purpose for offense