n large beast incorporeal spirit 

Perception +18; darkvision, scent (imprecise) 60 feet

Languages Common, Sylvan; tongues

Skills Athletics +23, Intimidation +20, Survival +16

Str +7 Dex +2 Con +5 Int +0 Wis +2 Cha +3

AC  29; Fort +21, Ref +16, Will +18

HP 160; Immunities poison, precision, disease, paralyzed

Guardian's Aegis (abjuration, aura, primal) 30 feet. All allies within 30 feet of the feathered bear gain a +1 status bonus to saves against magical effects. The bonus increases to +2 if the effect originated from a demon or other chaotic evil fiend.

Avenging Claws [R] Trigger A creature within 10 feet damages the feathered bear's ally with a melee attack; Effect The feathered bear immediately Steps toward the triggering attacker and makes a claws Strike.

Speed 35 feet

Melee [>] jaws +21 (magical), Damage 3d10+9 force

Melee [>] claw +21 (agile, magical), Damage 3d6+9 force plus Grab

Primal Innate Spells DC 27; 3rd barkskin, endure elements, haste, jump, longstrider; Constant 

Feathered Charge [>>] The feathered bear Strides and makes a Strike at the end of that movement. During the Stride, the feathered bear ignores difficult terrain and greater difficult terrain, and they can move across air as easily as solid ground. If the feathered bear doesn't end their movement on solid ground, they fall as soon as the Strike is completed.

Bonded Strike [>>] Requirements The spirit guide is currently Bonded with a Mortal; Effect The spirit guide makes a jaws Strike. If this attack hits, the bonded mortal can spend their reaction to Strike the same target.

Mauler The feathered bear gains a +4 circumstance bonus to damage rolls against creatures they have grabbed.

Bestiary 3, page 253.