Your situation looks bleak, but your companion comes quickly to your rescue.

Daily   ✦     Beast, Martial
Standard Action      Melee beast 1

Requirement: You must be bloodied.

Target: One or two creatures

Attack: Beast's attack bonus vs. AC

Hit: 2[B] + beast's Strength modifier damage, and you gain 10 temporary hit points.

Miss: Half damage.

Effect: Until the end of the encounter, each time an enemy adjacent to your beast companion makes a melee attack against you, your beast companion deals damage equal to its Strength modifier to the attacker as a free action.

Published in Dragon Magazine 387, page(s) 46.