Yeah, just played this & Nyxbloom was kinda my main killer & let me play like 3 ultimatums in a turn. Ended up doing ruinous & then using my loads of mana from 2 nyxblooms to use leyline to make my creatures huge & got the opponent to -60. Anyway, loads of mana can be fun even if you don't need it. Golos would be a nice add, though.