I think it's 5-5. Both can deal quite well with each other, but Deathstroke can chip aquaman a lot while simultaneously forcing him to play rushdown; aquaman wants you to play on his terms, not the other way around.
As for Evo, Theo seemed uncomfortable with the matchup. He usually plays flawlessly and was making a lot of mistakes. It was a really good match either way.
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MITDJT just out of curiosity, what was the reason for using d1 sword flip instead of f23 sword flip in your combos? F23 gives you a little more damage.