The potential to resolve three game-ending spells like Emergent Ultimatum or Breach the Multiverse in a single turn makes this card an absolute must-play for anyone looking to dominate the late game
As such, the card is seeing fringe play in Legacy in Aluren as you are able to Venture and complete dungeons, especially Lost Mine of Phandelver
If I'm ramping, I want the most mana for my buck, so now I'm looking at Worn Powerstones and possibly even Hedron Archives, skipping the possibility of getting my Commander early in order to get more mana for bigger stuff
Use the mana value of the sacrificed permanent as it last existed on the battlefield to determine how much life each opponent loses
It has fantastic cards, comes with a booster pack, and is available at a great price
When you start to unpick the hoops you have to jump through to get this effect, though, Im not sure the juice is worth the squeeze