Raditz
Even Mike Dawson could do a Full Nelson.
Therefore, he can defeat Raditz.
Even things without arms like Goombas can do a Full Nelson. They've held baseball bats, so doing a full nelson should be no problem.
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http://24.media.tumblr.com/tumblr_lvb2chGY8D1qm7gfoo1_500.jpg
SuperNiceDog? More like SuperChillGuy. Who is better than me at brackets by a mile.