"Blasted fishtails! It's not enough that they meddle with my head, but they twist my body as well."
—Tahngarth of the *Weatherlight*

Merfolk Thaumaturgist

{T}: Switch target creature's power and toughness until end of turn.

The List

Planar Chaos

Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a creature may become lethal if you switch its power and toughness during that turn.

Effects that switch a creature’s power and toughness apply after all other effects, regardless of when those effects began to apply. For instance, if you target a 1/2 creature then give it +2/+0 later in the turn, it’s a 2/3 creature, not a 4/1 creature.

Switching a creature’s power and toughness twice (or any even number of times) effectively returns the creature to the power and toughness it had before any switches.