phoenix cards mtg Heart Flying When Ashcloud Phoenix dies Warcry Phoenix (DOM-150) - Dominaria

In Cube, there has been some talk about this card and some lists are trying it out

Late-game, when everyone is looking to close out the game, then it seems fine

Sacrifice it at the beginning of the next end step if it has mana value 3 or less

One possibility is to cast Apocalypse, a card that gets rid of everything, including your hand, leaving you only with Barren Glory, but that needs to be done on your upkeep, so there are options like Leyline of Anticipation or Emergence Zone to give these spells flash

That Bonder's Ornament will be surprisingly useful when you find yourself needing an answer in a couple of turns

Essentially its a pay to win game and only in a very tempered group that sticks to formats and limiting budget does the game become reasonably fun