Just reached 360 ardent coins, and got the angel of protection as an upgrade to my medic companion (Acolyte of Kelemvor). When reading the descriptions, I'm not sure what enchants/runestones to stack on the angel. I've got at least 2 usable companion equipment items that give +10% healing, that seems logical. If I stack more power, does that increase power? Any other stats to buff, or just put some on and use an Eldritch/lesser bonding? Thanks.