3 Realm Seekers In a very real way, this could have been the pseudo-replacement for Primeval Titan or Sylvan Primordial in your decks and hearts
Giving the creature +1/+1 is great too since, the lingering effects of Maximum Overdrive help scale your creatures higher and higher
While she wont always double treasure production, many cards like Parallel Lives that are known for doubling creature tokens will also double treasure tokens, so a lot of popular token support is still open when deckbuilding
All you have to do with Ghalta is find some way to get it into play as early as possible and suddenly your entire hand can be on the battlefield
I've even played Maze's End in Modern, which is fun but still fruitless (By the way, Wizards, Maze's End in War of the Spark or we riot, and no I don't care about the Vorthos flavor complaints
And its card draw