My biggest complaint with guardian.
I have had this go on cooldown so many times because someone gets hit by a monster. This shouldn't be happening. It's a 45 second cooldown and it feels like shit for it to go on CD for it absorbing one auto from a camp. This is especially apparent if you want to help leash as a Melee who ran guardian.
It should only proc the shield on champions, turrets, and epic-monsters (this one is a maybe).