Everyone remember the abuse in Onsal Hakair allowing you to tag point with no problem ?

It has been resolved long ago already, yeah I know. But I've seen another major problem that is also quite game breaking and completely overpowered.

"Standard-issue Elixir" while being guarded by a Paladin. This allow, for exemple, a DRK to recover at 100% right in the middle of the entire enemy raid.

I can see people already coming and saying "SKILL ISSUE" or "Then focus PLD first", but before you say that, try to battle a mixed team of Paladin/Dark Knight with 100% perfect team play. That is basically unstoppable and nobody can do anything about this. This shouldn't be allowed, and just like how you get interrupted for taking a point in Onsal, you should be interrupted if any attacks touches you even if it does 0 damage.

I'm okay with the Guardian spell itself that allows you to protect a teammate, but not if it gives an unfair advantage.

In frontline, the impact itself doesn't go exactly far and you can still manage to win against such people if their team is just braindead. But imagine that inside CC ? That would completely wreck any game. People will just stand inside the cristal, using Elixir under Guardian and poof 100% HP/MP back into the game, and nothing can be done.