Similar to the Dual Lands, it can scratch the bottom of a Power Nine card
After the exchange, Tree of Perdition would be a 2/9 creature (its toughness became 7, which was then modified by Cultists Staff) and the players life total would be 15
The chase is real: Serialized cards (that 001/001 One Ring isnt finding itself, but you should maybe lower your expectations) Masterpieces (because normal foils are for casuals (Just kidding, other foils in my collection
Commonly used for counterspells, and removal effects
This doesnt just mean its easier to cast in Azorius decks though it does mean that and that matters it also means that it can go in blue or white decks
With that in mind, its likely best to view this card as a form of card advantage as opposed to a hatebear that will keep your opponents in check