Most likely gonna get bombed down as its silly, but hey,might as well give it a try

We all know that buff used by some enemies, that attacking them will stun/damage you. Give A and S marks 2-10 minute lasting "special buff" that makes anyone attacking it afflicted with pacification (30 seconds and renewing on each attack?) that would kinda make people wait the boss buff to wear off, or if they decided to keep attacking it, slow down the killing.

There! i said it!