* Targeting: Mist Body prevents your monster from being targeted by card effects. This includes effects that would destroy, banish, or inflict other negative effects on your monster.
* Destruction: Mist Body prevents your monster from being destroyed by card effects. This includes effects that would destroy your monster in battle or by other means.
* Effects that change ATK/DEF: Mist Body prevents your monster from having its ATK or DEF changed by card effects. This includes effects that would decrease or increase your monster's ATK/DEF.
Mist Body does not:
* Protect against targeting by monsters: It only protects against card effects.
* Protect from battle damage: It does not protect your monster from being destroyed in battle.
* Protect from Spells/Traps: It only protects from card effects, not the spells or traps themselves.
So, while Mist Body doesn't specifically protect against a higher ATK, it does protect against effects that might try to lower your monster's ATK, effectively achieving a similar result.