Hello. Dat questions for devs:

1. How work spell pen?
2. Why if you wear Gladiator Wand with spell pen + event tabby (400 SP) + event shirt (300 SP) - damage from spells lower than without wand or like with wand and event tabby?
3. Why such a large variation in damage from casters spells? 5 time i hit 450 k / 1 time 350 / 2 time 394. What is the reason for this?