what rarity is a gold star pokemon card Pokémon Cards: Pull Odds, & How They Changed Over Each Era Pokémon ☆ (TCG) - Bulbapedia,

Hellbent Rakdos was one of the three guilds in the final set of the original Ravnica block, Dissension

Aleatory Boompile Bottle of Suleiman Breeches, the Blastmaker Chance Encounter Chaotic Goo Chaotic Strike Crazed Firecat Creepy Doll Crooked Scales Desperate Gambit Edgar, King of Figaro Fickle Efreet Fiery Gambit Fighting Chance Frenetic Efreet Frenetic Sliver Game of Chaos Goblin Archaeologist Goblin Artisans Goblin Bangchuckers Goblin Bomb Goblin Festival Goblin Kaboomist Goblin Kites Goblin Lyre Goblin Psychopath Impulsive Maneuvers Invert Polarity Karplusan Minotaur Kerblam

Once full of quest counters, white gets a Conjurer's Closet, green gets Ride the Shoopuf plus trample, red gets an ability doubler, and blue gets Coastal Piracy

While you do have to sacrifice a creature to get this effect, its still useful at worst and abuseable at best