Unless you're going for the for-fun creative route, since Early Access will only go up to level 8 unless you massacre everything and everyone, it is far stronger to focus on a single tree with 1 or 2 buffs like Haste. Most Source Skill are also quite lacking at the moment like Arrow Spray being a joke compared to Stealth-Snipe.

Archer buff haste and everything before a fight begins to a stealth snipe -> goes first -> Adrenaline -> Shoot -> if you have Aero+Teleport or Teleport glove on that character, bring them down to Ifan. Use Tactical Retreat to get into a new position if needed to abuse the massive range increase.

Ifan then kill whoever you have been shooting and teleporting to him right away.

It's ridiculous how op this is because this mean anyfight with something like a Cryo mage, you immediately kill them before their turns even begin and remove one of the few magical CC the enemies will have. With so many armor giving huge Physical armor, you will just block all the BAttering ram and Crippling blow CC. This is why the Chain Lightning Void Woken is probably the most difficult fight. It abuses the best spell to deal with your team.

Memory is really only needed on Mages and there are tons of level 5+ gears with memory you will find later that you can add random skill to your physical char and not lose out in actual combat.