[trupak]

I'm playing with summoner myself, 20lvl at the moment. Was thinking pretty much of a same tactic: pets tank and damage, i cast plague and eruption.

About healing i would say it's quite worthless, you always can summon new pet. Also notice that in epic/legendary level pet's life is much more than it shows in titancalc. So u might consider maxing healing also if it's ur style to play.

About armor i'm wondering why u mention strength. You will be caster therefore u wear mage's armors and also staff, which require intelligence (not more than ~500 intellegence for best equipment). Also u need 150 dexterity. Everything else i would put into life. Life is never too much. But it's again more of an own preference.

I would suggest volativity and EE to max both. U need backup damage. After all pets doesnt do as much damage as u would like.

Would be interesting to hear of more experienced summoners, which spell is best for damage. Hadn't chance to test this out. I myself ended up with eruption, it seemed to do more damage and require less skills.