Be aware that as an ability cost means the ability cant be used on his first turn, as characters whose ink hasnt dried (their first turn played) cant exert
In this current meta where you are guaranteed to see Treasures in almost every game, Professional Face-Breaker also provides some card advantage with Treasures you don't intend to use
If you need more help with the Disney TCG, check out our guides on the best Lorcana starter deck and how to play Disney Lorcana.
There are worse 5-drops to play, so it might be worth running Ultimecia on the off chance you can pay the cost, but I dont think Id go out of my way to pick it in a draft
Its a fantastic way to remove some combo pieces or deck-defining cards in basically any format, and its cheap enough to be played
Negate and Stifle arent playable main deck cards in Limited, and combining them into the same card doesnt change that