Best 4 person all caster/priest group

[fortior]

There's also no way to add more utility to any 3 man caster/priest group than by adding a Druid. Ports alone are massive, potg is mana regen, long snare on charm pets makes breaks a breeze, and damage shield is insane dps on unslowed mobs. If you want beef you add a chanter, if you want heals you add a cleric, if you want utility you add a druid. No other class even registers.

Saying you can just grab a dial-a-port in your non-druid 4 man is essentially the same as saying you can just get outside buffs from a shaman. Any 4 man needs a porter or you're behind from the very start