one piece op10 royal blood booster box Piece: Sleeved Pack 6 Leader cards ONE PIECE OP-10 ROYAL BLOOD

That's the sort of aesthetic you should be prepared for before diving into Duskmourn: House of Horror's Endless Punishment Commander deck

Not only does it have great stats for a red creature as a 3/3, but it also 1) triggers every time it or another Kavu enters, 2) has warp, so you can get an extra card off of it when you have two mana, and 3) lets you play the card at any time, not just the turn it's exiled, so long as you control a Kavu

Cards like Flameshadow Conjuring and Twinflame are fantastic for making token copies of our best creatures and then copying those copies

The only reason this isnt higher on the list is that Crew 4

Its an additional tutor plus has a very powerful amplification ability

You are getting a creature that can deal a ton of damage to every creature on the board and every player in the game