Its no Selesyna Charm , but its certainly playable
Since the primary use of Myr is for mana generation, you can quickly build up an army of rocks that produce the mana you need, buff themselves, and then untap to dish out the pain in the damage step
By contrast, I do have eight cost-reducers of various flavors: Goblin Electromancer Baral, Chief of Compliance Case of the Ransacked Lab Rowan, Scholar of Sparks Jaces Sanctum Wizards of Thay Font of Magic Mindsplice Apparatus Notably, there just arent a lot below four mana, but I included what I reasonably could
Until now we haven't seen any two-color combo cards, but here are a few that Niv-Mizzet might be able to grab for us
Its currently used in Taiwan, Malaysia and Hong Kong
In decks that go wide with creatures, this card can be a lifesaver