Companions you control get +2A/+2H.
Frequently Asked Questions
This will passively increase the attack (A) and health (H) of Companions under your control.
Losing the effect, such as by switching control to another player, will always attempt to take away from the Companion's missing health (H) first. This means a Companion with 2 health (H) remaining will not die as a result of losing the buff.
Further questions? Email me at Hero@TalesoftheTomes.com