If you want tank: Full con+agi. Do not learn random skills, just go for blood bull lvl 10 first. Primal rage, Great sword mastery, Illusion Slash, Berserk are great skills to max. i prefer not maxing Howl, unless i am trying to level up champion on his own. But that is not recomended either way.
If you want to do damge: you are looking for 140 aspd passive. What does it mean? With buff and lvl 10 berserk you are reaching 210 aspd.
After you get enough aspd, rest of stats should go to str or con, that depends on what you want. There should NOT be detailed guide on damage deal champion. Why? Any newbie who will actually go for it WILL fck up character in the end. Either too much agi poped early with hard time to reset later, or too squishy and can't do anything. You should have enough experience to play damage dealer champion.
i should make real guide later though.