mtg murder at karlov manor commander decks Murders at Karlov Manor Commander

Ramp cards and other discard effects are prime examples of things that scale down and lose loads of value when sat under a Maggot or Fiend

The icing on the cake comes during your upkeep, where you get to Scry X and make your opponents lose X life, where X is the number of Zombies under your control

It becomes an Angel in addition to its other types and gains flying

The Horsemen are dead long live the Horsemen

If the Aura can't legally be attached to anything, it remains in exile for the rest of the game

Then his -3 is strong as you can build up a graveyard with his +1 or other similar effects that synergize with a plumbed graveyard