The Enigma Jewel / Locus of Enlightenment The Enigma Jewel is an activated ability build-around for only 1 mana, and its very easy to put into your decks and play
Since Y'shtola repeatedly damages each opponent, cards that trigger off noncombat damage such as Curiosity, Ophidian Eye, Tandem Lookout, Helm of the Ghastlord, and Sigil of Sleep are powerhouses that quickly take over the game
I think this is probably the worst of the bunch, mostly because its effect is more niche than the others
This means we have a Hyper Rare card in our hands, besides its unique golden shade and Full-Art feature
This is perfect for a Grave Pact board control style self sacrifice deck, which is right up Rakdos's alley and a blast to play if you like your friends to be sad, which I do
When it enters the battlefield, all other creatures get -2/-2 until the end of the turn, and whenever a creature dies you get one energy counter