That would be me. Hi!
Melee damage bleeds through based on you current % of toughness - so if you’re at 100% you shouldn’t be taking any damage (edit: There is a min 10% damage even at max toughness, sorry - it’s late over here) . Combined with the toughness gained on melee kills and toughness gained on ability use we hope to reach a balanced yet challenging experience.
Thank you for your feedback.