black discard cards mtg Standard decks — Bo3 Standard Mono Black Discard

Drizzi needed some kind of trample itself to get this card to where it needs to be for cube

Just watch out for certain Exile spells like Swords to Plowshares or Vraskas Contempt that would make recasting Optimus more expensive (the Commander tax applies to both sides), or other annoying blue cards like Capture Sphere that doesnt kill him but does prevent attacking and blocking

And once again, if you companion it, it's very easy for a player to just point out it doesn't work

To make better use of the heal mechanics with reducing strength, think about Vanellope von Schweetz Sugar Rush Princess and Vanellope von Schweetz Candy Mechanic as a Shift target that does the same

Instead of needing to rely on having another card in your hand to benefit from losing life, Greven itself receives a direct buff from any life lost