Okay, here are all my turns for the rest of the battle until I say otherwise:
Turn 2: Copycat Ashwood's Mega Punch, targeting Sushi, for a cost of 17 stamina
Turn 3: Use Basic Attack on Sashimi for 1 stamina
Turn 4: Use Basic Attack on Sashimi for 1 stamina
Turn 5: Use Basic Attack on Sashimi for 1 stamina
Turn 6: Rest
Turn 7: Use Pound on Sashimi for 2 stamina
Turn 8: Use Pound on Sashimi for 2 stamina
Turn 9: Use Pound on Sashimi for 2 stamina
Turn 10: Use Small Blast Seed on Sashimi