If your opponent doesn't have a way to deal with him unexerted, you may be able to really cut into their lore gain potential
Stax decks are aggressive in how they lock down the game
This makes it easier for players to understand new cards
Ultimately, I think its one of those training wheels-type cards, the way I think Ive seen Gerry Thompson discuss big threats in certain control strategiesif your play isnt as tight as it could be, its very good at forgiving some mistakes and taking a game over by itself, but once you understand how the deck operates and how you need to deal with everything, I havent found it necessary for anything Im trying to accomplish
Waste Not Your opponents are going to be forced to discard constantly , making Waste Not extra powerful in Kefka
I have passed deck checks using this method, so I think it will be fine at other venues as well