When I enter a PVP match, and I usually play as thief or engineer, if I see there's a necro on the other team, and no necro in mine, I'm just leaving the match right away, I prefer to wait 30 min than waste time with unkilable necros. I NEVER won a match againg a team with more necros than mine, heck I never KILLED a necro this season in 1x1 or even 2x1... Necros are seriously unbalanced, this must change.