The fuck is this class name?
https://github.com/GustavoSasaki/Ragnarok-Cards/blob/main/src/main/java/ragnarok_cards/Items/aa.java#L23
Use proper CamelCase naming convention.
https://github.com/GustavoSasaki/Ragnarok-Cards/blob/main/src/main/java/ragnarok_cards/Items/aa.java#L77
This condition will never be true.
https://github.com/GustavoSasaki/Ragnarok-Cards/blob/main/src/main/java/ragnarok_cards/Items/aa.java#L85
Beyond that I'm not sure, I've not messed with entity loot modifiers myself.