Notes. The auras from multiple Contagions do not stack. Pestilence's.

Does pestilence and divine ruin stack?

Pestilence and Contagion auras don't stack. Two of the same item don't stack (e.g. 2 Divine Ruins or 2 Toxic Blades at full stacks). However, you could stack Pest, Divine, AND Toxic Blade.

Does pestilence stack with brawlers?

They will stack, always have. Divine+Brawlers+Pestilence will give 105% antiheal.