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What he said, which I summarized in a quote, basically meant: "It has too many attack moves, thus there should not be anymore." Which I disagreed with. Cause = Too many attack moves. Effect = No more should be created. I think if there are more out there that could be created, they should look into it. They shouldn't just disregard attack moves because they already have a set amount. However, I do agree they should focus on the "continuity" of water rather than focusing on attack moves.
Focusing on something is different than planning for something.
Surge is a wave, the only reason it should do damage is when slamming someone into a wall. It would make it very very overpowered if it did damage normally as Surge is incredibly hard to dodge and can easily be spammed.