If you really like the ATK reduction + destruction effect of Slifer the Sky Dragon , King Tiger Wanghu gives you virtually the same effect, and is easier to set up
Despite appearing to be somewhat weak competitively, Sab-Sunen, Luxa Embodied will work wonders in Commander
Now, looking past the obvious picks, heres the stuff power players actually use to dial in runs across games like Slay the Spire : has rotating Monster Train Daily and Expert Challenges that remix mutators and difficulty ladders, perfect for repeatable test runs and score pushes
To have a creature that strong the downside is that you have to discard a card to keep it alive, but in this deck, its not a downside but an upgrade
(Some abilities can also target unexerted cards.) But not using them has less of a direct benefit - you dont need to defend your life points, as in MTG or Yu-Gi-Oh!, so leaving cards upright is typically only worthwhile if theyre likely to be challenged by your opponent and you need them for a future turn
For just one red and one white in addition to the single X cost, you make X 2/2 Human Knight tokens with both trample and haste