Breya is pretty straightforward good stuff and mana, with a commander that Shriekmaws their commander and lets you cash in extra mana rocks for the same thing later
Alternatively, you could cut white and go for something like Radagast, Wizard of Wilds or Tawnos the Toymaker
It is one of your better cards in matchups that dont have a lot of removal, but virtually every deck in Pioneer has some way to deal with it
Plains #B1 (Ravnica Weekend) by Alayna Danner Magics latest visit to Ravnica introduced elaborately themed Guild lands as promotional cards for Ravnica Weekend, and Danners Azorius Plains-Island Diptych is a simply stunning addition to the series
Add the Modern Horizons 2 coin-flip legend Yusri, Fortune's Flame to the 99, along with Mutalith Vortex Beast from Warhammer 40,000 , and youve got, well, youve got a deck that does things
Others, like Inkmoth Nexus or High Market, only produce colorless mana