Keep adding from the recruitment section of people looking to do it, find a couple of people you play with regularly so you know their play style. Then workout a strategy of how you are going to take on skolas. Think he spawns mines when his health gets to the l in skolas and again at k. Be aware of where his health is and who has the essence and who is next to take it. Also try and make sure everyone knows what they are doing and when to expect things to happen I.e when he gives you essence and when the mines spawn.