Dragon Horn max jump of 3

The code for Shock is extremely bare bones. It amounts to "find the ability Megahit. Now cast it." That's it. If you want to limit the number of times it is cast per battle, you've got a huge asm task ahead of you. You'll have to find an unused ram byte, increment it, and have the ability grey out when the value is greater than 1. So... There's a reason nobody answered your question or jumped to offer help.

Here's the thing: Shock wasn't ever meant to be balanced. It is meant to make Leo impossibly cool for one battle. When you look at the data, it's the equivalent of Bolt 3, but non elemental and cast for free. In my definitive edition hack, I actually gave Leo the Runic ability (Celes has Jump), and coded a relic to change Runic into Shock late game.

That makes sense. It's too bad the code created by GrayShadows causes glitches in the game (by having Shock use up MP). I wonder why that is...