Slip Out the Back

Phasing is the most honest protection spell there is, because it does not intervene in a spell or a combat step so much as it removes the creature from the game state entirely for a turn. A targeted removal spell finds nothing to resolve against; a blocker assignment evaporates; an aura or Equipment leaves with its host and comes back attached. That is a cleaner save than a hexproof grant or a bounce, both of which leave the creature reachable through a different line or reset it to a summoning-sick cast. The wrinkle worth naming is the attacker line: a creature phased out during your own combat comes back on your next untap, so this reads more naturally as a defensive tool or a way to blank a wrath than a way to dodge a block while pressing damage. Growing the creature by a counter is what pulls this out of the purely reactive column: the mana you spend on protection also leaves a bigger body behind once the danger passes, so the card is never a blank on the board. Phasing has spent most of its history as a curiosity mechanic rather than a role-player, printed in oddball cycles and rarely worth a maindeck slot. Attaching it to a one-mana buff is the move that gives it a reason to sit in a deck as a real interaction spell rather than a novelty.