Sedris, the Traitor King There are plenty of ways to go about building a Sedris, the Traitor King deck
The problem with Augustin is that he is also a bit all over the place, it is hard to abuse either of the effects, and while you always get some value out of them it is usually not enough to make up for him being a 4 mana gribbly with pap stats
Demand Answers Demand Answers hits a nice sweet spot because a stray artifact token or extra card to rummage away is so easy to come by in red that this is an amazingly useful card, even if on the surface it's underwhelming
But if you want to do that, its an ability thats probably great in Commander/Brawl
It may well be the case that your opponent would have nothing to follow up with if you just blew up this hypothetical Perilous Vault immediately, but unless they accidentally show you their hand or they empty it before combat by laying their last card in hand down, the decision to defer is something your life total can afford you
Did we miss any in your Top 10