Simple explosive arrows mechanism. You can shoot with explosive arrows with a bow which has Lore tag "explosive_arrows" (click at sign to get it). Without ammo crafting system.
Using only two scoreboard objectives.
If you want to disable this ability for specific player, even he has a "special bow", just set his score at objective "exarruse" more than 1. Return it to 0 to activate ability.
Compatible with other mods.