Thraben Exorcism

Removal that reads like an answer key rather than a threat profile. The three legal targets (Spirit, creature with disturb, enchantment) are not a general shape of danger; they are the exact card types a graveyard-and-flicker plane leans on, and the exile clause was built to punch each of them without touching anything else. That narrowness is the whole trade: a premium instant-speed exile at this rate, paid for by the fact that half the battlefield is immune. Disturb is why the exile earns its slot over a cheaper effect. Creatures with disturb cast themselves back out of the graveyard, so a plain destroy just refills the tank; this answers the front side and slams the door on the back side in a single motion, which is the specific reason it exists rather than a tap-down along the lines of Pacifism. Against Spirits and enchantments it is a clean, permanent answer at a window your opponent cannot always play around, since it responds to an attack, a trigger, or an end-step activation rather than waiting for a sorcery-speed opening. Strip those three categories from the board and it is a dead card in hand: a scalpel with three specific cuts and nothing to do the rest of the time. Surgical hate that sits ready for one shape of opponent rather than covering the field.