Various assassin characters as well as Warrior AxBB release marks on their targets that can be detonated via perfect strike from a subsequent attack. The same feature can also be unleashed via the assassin death talisman set.
I have noticed that the assassin golden son does great damage igniting these marks. However, I have also noticed that on occasions when this toon misses followup attacks from other characters don't do nearly as much damage as Golden Son. I have tried hard hitters like warrior troll and allied general, AoE eddies like gunner and CR, and even assassin characters like Artillery Dog and Troll. So far, Artillery dog has done best but damage is not in the same league as Golden Son, and the others don't register on the same planet.
I don't think it is a major talisman issue as Golden Son has a trio of 5* and a trio of 3*, whereas others I have experimented with (all 5* level 100) have solid 4* or 5* talisman complements. Are there other characters ideally suited to igniting marks, or is this a unique feature for Assassin Golden Son akin to Wicker Man Eddie's ability to ignite flame damage?