My inspiration for this card was Wickerbough Elder, and I've been trying to get a variant of this card in a set for a while
Freerunning Callidus Assassin or either version of Massacre Girl, among the various other cards that make assassin typal a thing, does sound kind of cool
(The exact restrictions are more specific, but thats the general idea.) Other formats, such as Modern and Legacy, dont rotate at all, meaning the pool of cards that you can choose from grows with each new set release
To elaborate, reds removal is tied for the worst with green (who struggles slightly more with creatures but can handle enchantments), their protection is limited in scope, and their advantage states are often ephemeral bursts of power instead of game-spanning engines
Of course, this ability is a significantly weaker in a multiplayer game, but chances are, the players who are not targeted by its ability won't see it as a threat, so it's not at a big risk of being removed from the board
DH: You caught me