1.) A weapon damage enchantment causes damage;
2.) Dealing damage to an enemy via a light attack, heavy attack, or weapon ability triggers a 20% chance for the weapon damage enchantment to proc (thus dealing additional damage);
3.) Casting a heal on a friendly target causes no damage, thus the weapon damage enchantment will not proc.
It would be illogical if casting a heal on a friendly target simultaneously damaged them, so the game is coded to avoid that.
1.) A weapon damage enchantment causes damage;
2.) Dealing damage to an enemy via a light attack, heavy attack, or weapon ability triggers a 20% chance for the weapon damage enchantment to proc (thus dealing additional damage);
3.) Casting a heal on a friendly target causes no damage, thus the weapon damage enchantment will not proc.
It would be illogical if casting a heal on a friendly target simultaneously damaged them, so the game is coded to avoid that.
Healers need to know how to light attack weave as much as DDs to be GOOD good.
So essentially weapon enchantments go to waste on a healer unless you slot a dmg ability and do light/heavy attacks, but normally you're targetting an ally.