The sheer absurdity of the words written on Vivi Ornitier makes it an easy leader for most broken card of 2025
Enemies even get punished for playing as Thalia, Guardian of Thraben, who boosts the cost of casting spells, and Teferi, Time Raveler stops counterspells
Because if not that then it seems the real reason to play Curse of Obsession is to curse yourself and have a less killable Avaricious Dragon on your board to get some red card draw going
As for why Greasefang isnt popular in Standard, well, she dies to a LOT of things, and BRO Standard is filled with very easy, very cheap removal that many other formats dont often run as plentifully, but the reality is that there arent a ton of viable good Vehicles for her to reanimate
A raw, ungraded version of this card (shown above) was sold for $80,000 through private sale per Card Ladder information
There is plenty of life gain not on this list that still gets some niche cube play as lifegain cards and also plenty of regular cube cube cards that get play but not really as any sort of life gain thing