Force of Despair showing Squidward looking sadly out the window may work with the card's name, but has little to do with its mechanic of destroying creatures (unless I missed a particularly violent SpongeBob episode)
Meanwhile, on the less monstrous side of things, the more human-focused forces of Innistrad might have the ability keyword Coven, which can cause a unique ability if you control three or more creatures with different powers when its triggered
Block icon 5 Type Impel Down/Straw Hat Crew Effect [Main] You may rest 6 of your DON
2020-06-01 If you reveal a companion outside the game, for as long as it remains there, you may pay any time you could cast a sorcery (that is, you have priority during your main phase and the stack is empty)
One common sentiment Ive seen around these decks is players planning to leave them entirely unaltered in order to play them in a group against each other, leaving the consistent art of the decks intact
Consider the oldie Orcish Conscripts