My main gripe/issue with playing summoner:
"quick kill or wipe!" multiple scattered 'soft' adds... too soft to justify DoTing up, and yet, ruin/ruin2 is like throwing pillows at them...

it's a major gap in the summoner's capability. We're "damage over TIME", so adds that aren't sturdy enough to use dots on, but are sturdy enough to laugh at our ruin casts (and pet attacks macro'd to our target), are a real problem.

Really the only problem is this... that the devs have designed 1/2-2/3 of endgame content with these squishy adds that you must kill quickly or cause a team wipe... even though there's a dps class which gradually winds up to maximum dps and has no real 'burst damage' (and NO! Fester/Bane are not "burst damage", they are things you take time setting up, and then they help to pay you back for the time you spent doing poor dps while gradually stacking up your DoT's).

Giving "quick-kill" adds more health (and equally more time to kill) would fix summoner.