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Lets look at his Team:
Suigetsu Hozuki: Hydrification, Suiton, 7 Swordsmen of the Mist level Kenjutsu
Jugo: Sage Mode, Extremely Powerful, Can Heal Sasuke with his Cells
Karin: Uzumaki, Healing, Loves Him Too Much To Desert Him
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Clearly Sasuke knew who to pick to be on his team.