[[File:IconCompanion.png|left]]'''Bat Companion is a rune effect in [[Companion]]''' is , a Discipline -spending [[Demon Hunter skill]] unlocked at [[clvl|Level]] 15that summons a companion animal.

This rune effect summons a bat that flaps around, granting the Demon Hunter a steady regeneration of 3 Hatred per second. This is on top of the normal Hatred regeneration, and the Hatred earned by using various skills. The bat does not attack enemies or get attacked by them, and this effect is essentially a winged-Aura, for intents and purposes.  ==Skill Rune Effects==See the [[Companion rune effects]] page for a more thorough description of the five rune effects in this skill, including screenshots, videos, and skill tips. {{skill description header}}<skill class="DemonHunter">Companion</skill><skill class="DemonHunter" rune="Bat Companion">Companion</skill>  ==Media== [[File:DH_companion_gold.jpg|thumb|300px|Bat Companion.]] A view of the Spider companion, obtained via datamining the beta client. The final game creature may very slightly in appearance.  ==Development== Prior to the skill revision in February 2012, this rune effect was enabled by the [[Golden Rune]] placed in it will create , granting the following companion.effect with a level 7 runestone: