Since we got Fire, why not add one more?
Sword: it will shock the enemy, stunning them, if an enemy comes close to them, they will also be shocked.
Bow and Arrow: Lightning Chain, will go for the closest enemy and shock them, then jumping to another enemy and so on and so forth.
Hammer: When hitting the ground, it will do a small shock wave on the floor, like this. shocks the enemy as it goes, the shock lasts longer if they were closer to the wave
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they are separated, but if you put them close together, you'll see the point