While I wont be so bold to say that you should trade this in for something like Rampant Growth, I will say that more effects like this will be a welcomed inclusion in the format
Izzet Control (1 player): Izzet Control has some overlap in cards and strategy with Dimir Control, but the combo of Flame of Anor and Snapcaster Mage is a good reason to play red
This means that you can only really play them in Commander, Legacy and Vintage
Rotting Regisaur Pre-2010 or so, Rotting Regisaur would have had a more restrictive drawback--I'm thinking specifically a Masticore-style "at the beginning of your upkeep, discard a card or sacrifice Rotting Regisaur." Instead, M19 gave us a more modern design, which doesn't require a discard if you're hellbent and prevents the miserable feeling of top-decking a Masticore when you're desperate for a creature and out of cards in hand
The game plan is tightly focused, the individual pieces well costed and impressively powerful, the suite of effects varied and the mono-color land base perfectly sufficient
I decided to see if I could defy Dr