[Question]Arcane Protection

[=drake=]

Stunshot is a debuff WITH two instant effects attached.

Debuff: the stun (resistances toward debuffs applies here)
Instant: Overhit damage and 50% cancel target

operate_type=A2    <- is a debuff
effect={{p_block_act};{i_target_cancel_chance;50};{i_p_attack_over_hit;344;0}}

the effects that starts with "i_" are not processed as a debuff (chances, activation rate, resistances, etc...) but at the initial phase (when the skill cast is finished).
i_ stands for INSTANT.
p_ stands for PASSIVE (in fact, you get this passive effect on yourself for the whole duration of the skill)