Wynn to finish off mobz (cause the 10 last percents are the longest to take down when it comes to lethal party. Plus, their summons make two additionnal targets for archers (or wizard/assassin in hide), allowing more survivability for party, and eventually, their exile/mass exile provide some nice CC when you aggro 2 or more mobs.
man there is many setups to go to CR, without to talk about base that is ISS/Healer u can do with: 1 - 2 archer and 3 dagger (no tank) U don't need tank cuz the archer can be a MA (main atack) and he can lure mob and dagger atck after... to me it's a the best party cuz kill alot when u have a good DDs 2 - archers/daggers/summ - (Why summon?) summon have marks and how someone said before summ has a good CCs too and he can save a lot daggers cuz the pets. U will see 3 - archers/daggers/tankers - basic pt and tanker need to do what he can do, if u have a stronger tanker it's more hard someone die. so if u wanna uplvl on CR the base pt is archers, daggers and of course ISS/Healer hum of course I don't know if u understand but if I have summon on pt I don't invite tanker and the same thing if I have tanker... but I prefer the first setup only archers and daggers
archers+daggers only = hard work for heal cause daggers will die a lot, and with agation for xp bottles that's very very bad -10min of it each time u summon
