Decoy

Conjures a decoy where you aim. Every mob within 16 blocks of it, except tamed pets, is convinced the decoy has just hit it, so hostiles turn on the decoy instead of you. The taunt is renewed every second for as long as the spell runs, about a minute, or until the decoy is destroyed.

Higher levels give the decoy more health, so it holds out longer under attack. Cast it when you need a breather.