Prosper is a Legendary warlock who claims his power was gained from winning a bet against an unnamed supernatural being
Both are sac outlets that can provide additional value in the form of scrying and removal and mana, respectively
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Legal Oathbreaker Legal Penny Legal Toolbox Buy This Card Notes and Rules Information for Izzet Guildgate: The subtype Gate has no special rules significance, but other spells and abilities may refer to it
Also, good luck to the unlucky opponent playing assassins in that pod
It effectively weaponizes all of the extra life you gain, and it can even be a combo piece (alongside Exquisite Blood)
While Court of Ire can deliver seven damage to any target per upkeep if youre the monarch, Court of Cunning can mill ten cards per upkeep if youre the monarch and Court of Locthwain can steal the top card of a single players library and play it for free if youre the monarch, Court of Ambition bests them all