Potential problem

[Little Sara]

I heard that wings double the effect of the card slotted into them.

I'm not sure if this is a composed effect or a cumulative effect, I'm assuming the latter. If it says 1% chance to get x item. Even if you can get 2 items in one kill, it still boils down to 2% chance overall (ie, I kill 100 mobs, I'd statistically get 2).

The potential problem lies with this card:

Lord Knight Card [Headgear] Item ID# 4357 (B_Seyren_Card)
Description Enables use of Level 1 Berserk.
Maximum HP - 50%
Item Script { skill "LK_BERSERK",1; bonus bMaxHPrate,-50; },{},{}

If the effect is doubled, the user will have -100% HP. Or maybe I'm misunderstanding how it works. If I do (and its very possible), please enlighten me.