ToME: the Tales of Maj'Eyal

other interesting facts:
1) The damage of the DoT in tooltip is before the damage type bonus of the source applying it.
i.e. Assume that you have no defense at all (no resistance, no AM shield, no flat damage reduction, no whatever), and you are hit by a Flame from an archmage rare. You get a burning effect that deals 20 fire damage per turn in tooltip and that archmage rare have a +50% fire damage bonus, you're actually taking 30 fire damage per turn.

2) A:what if the source applying the DoTs changes its corresponding damage type bonus and/or resistance penetration during the effect?
Q:the rest of the damages are increased by the new damage type bonus and penetrate resistance with the new resistance penetration.

3) A:what if the target is hit by a type 1 DoT from multiple sources with different corresponding damage type bonus and/or resistance penetration?
Q:the DoT uses the damage type bonus and resistance penetration of the source that first applies this DoT. I think it's the same for type 2 and type 4 DoTs.
i.e. You're a sawbutcher, and you're hitting a mob with very high physical resistance already bleeding from a Bone Spear from a corruptor enemy (who has no physical damage bonus and penetration), then your bleeding damage is going to suck because it also has no damage bonus and penetration.