Whichever combination of energy you ran, Aetherworks Marvel was worth including, but it was also just stupid with Ulamog, the Ceaseless Hunger still in the format
Red Card Payoffs and Synergies Youre not just playing mono-red, youre playing a deck where red matters
It's indeed become quite a casual staple, owing to the fact that it's not merely a cheap mana rock but also it becomes a huge value engine in the late game
Mulldrifter's double card advantage is very strong
Granting a creature a stun counter isnt the strongest deterrent, but when players have other decisions for attack targets, this small but relevant downside comes up a lot, especially in early turns
These abilities are so common that players abbreviate them to ETBs