As long as it feels right to you, it is right
Who/What/When/Where/Why This is my favorite Un- card for a bunch of reasons, but mostly because its one of the best, most interesting, and perfectly suited cards there is in an Un-set
1 Eris, Roar of the Storm A commander-in-waiting Just a few cards will bring Eris's unreasonably high mana cost down to something manageable, and in the late game, she's practically free
For starters, Retreat to Coralhelm and a creature that puts a land from your hand into play, like PuPu UFO, creates an easy loop
It also curves great with Spatial Contortion and is a nice way to set up Torrential Gearhulk
But since treasure has become such an omnipresent, homogenizing force in the metagame, everyone seems to agree that there needs to be a certain amount of passive anti-treasure pushback in our decks to give other mechanics a fighting chance