As happened to it in Legacy and Ice-Fang Coatl in Modern, it is likely that the presence of the greatest anti-cantrip card in Magic history will take away much of its competitive viability because it generates too positive value for the opponent
But thats okay, because the rest of Miiryms text box helps to fill the skies with lots of win conditions
FromTheShire: In the average game this is probably only drawing a card or two when you connect, but combined with the reasonable pump and getting the first equip for free I think that's probably fine on its face
Creature - Faerie Color tag templates(None) Jaya Ballard, Task Mage , , Discard a card: Destroy target blue permanent
You may want to save it for later turns where you'll have mana to cast the card you exile, or you might want to see all your options first before making your move
II Destroy target artifact an opponent controls