Its better in a Vampire deck, no doubt, but Id rather play Seekers Squire at uncommon in a normal deck
The vast majority of tutors in red (excluding intro deck tutors) focus on searching out specific types of creatures from your deck, then putting them either into your hand or the top of your library
In a metagame where graveyard recursion strategies like Amber Emerald Dogs are everywhere, this is a massive advantage because it prevents the opponent from simply bringing their threat back to life the following turn
With prowess, that's fairly easy to do, and Kitsa has so many keywords stapled on it that its bound to be an appealing option for any UR prowess or tempo strategies in upcoming Standard formats
Admiral Beckett Brass Admiral Brass, Unsinkable Adwal, Breaker of Chains Breeches, Brazen Plunderer Breeches, Eager Pillager Breeches, the Blastmaker Captain Howler, Sea Scourge Captain Lannery Storm Captain Lannery Storm Captain N'ghathrod Captain Ripley Vance Captain Storm, Cosmium Raider Captain Vargus Wrath Dargo, the Shipwrecker Don Andres, the Renegade Edward Kenway Francisco, Fowl Marauder Ghost of Ramirez DePietro Kari Zev, Skyship Raider Malcolm, Alluring Scoundrel Malcolm, Keen-Eyed Navigator Malcolm, the Eyes Mary Read and Anne Bonny Ragavan, Nimble Pilferer Ragavan, Nimble Pilferer Ramirez DePietro Ramirez DePietro, Pillager The Grim Captain Xavier Sal, Infested Captain Zara, Renegade Recruiter
FromTheShire: First impulse is to pair this up with Kaima, the Fractured Calm and a bunch of Auras and let the chaos begin