Your opponents often need to remove this nightmare angel before they can kill you since youll often have more cards in your library than life points, even at the double rate, and they need to consider the risks of enabling your graveyard strategy
If I just have my commander and 2 merfolk on board, I'd much rather have Hakbal to explore 3x and then move to attack
Korvold, Fae-Cursed King The best commanders tend to generate huge advantages, and card advantage or mana advantage are some of the valuable resources they can generate
These are not meant for Draft or Sealed
Activated Sleeper will probably be played alongside Protean Hulk for extra value and as a general purpose creature designed to capitalize on board wipes
Ukkima, Stalking Shadow There are a lot of animal crossovers in the Magic multiverse, but a whale wolf is a first