So, if you want to splash blue in your mono-red deck, Riverpyre Verge is perfect, since red is already your main color
This Dragon-focused planeswalker does a lot of work, making it a favorite in formats like Commander
I'll still get mail
Marcy: I really want to see someone make a crazy combo deck that makes this work, but since Rooms do not enter from the Graveyard opened or active, I can only assume that combo requires some form of infinite mana and draw, which is pretty boring
With Fraying Sanity or Bruvac the Grandiloquent amplifying the process, its shockingly easy to end a game in one or two turns
For the good boys that do their duties, look no further than Kunoros, Hound of Athreos and Tesak, Judith's Hellhound