Rescue Needs to GO

[MPNZ]

It actually just needs to have invincibility frames, and maybe coded to avoid players falling off ledges too. Adding charges would be like a good idea too

[UkcsAlias]

It actually just needs to have invincibility frames

Depending on how those frames work, this might be quite abusable. But there are probably ways to cover this so strong (basicly instakilling) boss attacks might still get through, probably using some very strong resistances with a little heal.

For players falling off ledges, you could make it in such way that players are always ensured to properly land, if there is no room in front of the healer, it would then just take the last healer position which they can stand on. And if that was removed, take the next position the healer can stand, if the healer died in such way the corpse isnt reachable, during the pull, undo the call (if this appears glitchy, just accept it. its a fallback against trolling).

Charges on that would probably make the ability broken in balance. You still need to have a large interval between uses to keep it balanced. I think that for 2 charges a 3min CD (instead of a shorter one, because while you have a use, it charges another one), and 1min between uses (which is a reduction in time, but still long enough to effectively make it unspammable) on that could work. But this also brings the issue, as it takes 6 minutes to recharge when fully drained. 6 minutes is a lot on that (and even with 2min for a charge, its 4 minutes. but already means that the 2min are very often going to trigger in a fight). And when it matters, you often can still only save 1 person. And most wipe mechanics already have an interval longer than 2 minutes to begin with.
But the thing is, this ability should become more popular, and also be more gracefull towards learning players. Extra charges is on that a good way to still always keep that extra charge remaining, just in case.