‘Infinity (Weapon runeword) worn by an AC2 mercenary’
A bug where the resistance of the mercenary is reduced when the conviction aura is turned on.
If you lift Infinity and put it on again, the resistance returns, but when the conviction aura turns on, the resistance value is reduced again by applying conviction.
Blizzard is always like this. If you fix A, the problem B is found again, but the developers have no idea.