Since Containment Priest has flash, you can often catch people by surprise and put a stop to mass reanimation or even take most of the punch out of a huge Genesis Wave by preventing creatures from entering the battlefield
not only does it generate ridiculous amounts of mana, but it exploits powerful draw engines like Curiosity and Tandem Lookout
Upon transforming, Ulrich becomes a 6/6 and can fight any non-werewolf creature, serving as a repeatable form of removal
First off, unlike Deceiver Exarch, this Human Wizard can be removed with a Lightning Bolt
Random Encounter is all about that single-turn kill-shot
Chandra, Dressed to Kill is doubling down on creating these kinds of problems for reactive decks, and Im happy to see the card finally get a chance to shine