Gwenom, Remorseless looks like a massive removal magnet, though anything that gives you the power of the Citadel is worth consideration
Exerting one of your characters to exert one of theirs is just not good enough in really any scenario
Surprisingly, it has also only had one real printing in Innistrad back in 2011, so I'm surprised you can still get copies for about a quarter
Being able to consistently deal unblockable damage while having a healthy pool of life to play with, Y'shtola can create a more than favorable board state while you prepare the finishing blow to your opponents
Blade Beam - - Destroy any number of target tapped creatures with different controllers
It should be said it is more difficult to play than the aggro red, but as soon as you learned to play it is definitely a powerful deck also it is very easy to adapt to your current card list