Spam 66A and 2K :) But on a more serious note, 66A is your best and safest step killer and the second hit is fairly easy to hit confirm. 2K is amazing because it STCs and pushes you back so a lot of 2As the opponent may do will likely whiff when spaced properly. 6B is your bread and butter guard punishment tool. His grabs (especially B) give outstanding oki into 6K2, 44B, or more grabs.
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Jimbonator