In general, I just dont want cards that are so overtly reactive in this format
Maybe this is an antiquated way of thinking about Magic these days, but it still seems to serve me well in cube
This card works very well in Commander decks that dont let the mana empty from the mana pool, like Kruphix, God of Horizons, or cards that let you untap your permanents, like Seedborn Muse or Wilderness Reclamation
Moldering Karok Wins Out This deck, on the other hand, is a BO1 draft deck I 7-0d with on MTG Arena Premier Draft
Cavern-Hoard Dragon this is not, by any means, but Realm-Scorcher Hellkite is still worth a look
Green doesnt interact with life gain much, so it seems lackluster in that archetype