That said, it commits you to going heavy red, the worst color, and at any point in the game past the first few turns its quite weak
It isn't any specific cards that have really changed things, Fatal Push would be the biggest contributor if I had to name one
(You may tap a Vampire you control in addition to any other costs as you cast this spell.) Target opponent loses half their life, rounded up
Zara, Renegade Recruiter lets you steal creatures right from your opponents' hands, which gives you a chance to swipe powerful ETB triggers off creatures like Etali, Primal Conqueror that other threaten effects miss
It spreads rad counters to all players and once they start milling cards due to the radiation, you make some 2/2 mutant zombies