Guild Wars 2

The idea: a pet mode where the pet follows its owner closely everywhere all the time and when the owner is attacking and the target is also in range for the pet, the pet attacks too, otherwise not. This would improve the ranger’s ability to keep the pet alive vastly, while I think it would be easy to implement. The only downside would be the need to use ranged pets with bows and melee pets with melee weapons.

Well one could work on putting on 1 melee 1 ranged pet, but I see your point. Still, I’d prefer a mimic mode where it only attacks what you attack (unless you command it to attack a specific target with [F2]). Agressive mode it attacks things you attack AND anything that hits you or it. This really leads to some problems if you are in a situation where you wana pull something, not link the entire area.