I’d like to suggest dampening in 2vs2 arena. Or at least granting victory to the team with most damage dealt after a 47 minutes battle.
I however believe providing dampening after 10 minutes is the way to go. There’s no need for this in 3vs3 but 2vs2 healer/dps vs healer/dps can be infinite.
Slightly increasing damage dealt or healing reduced every 2 minutes after the 10 minutes mark when there’s a healer/dps vs healer/dps detected would be great.