The Master vs The Toadstool Titan

Level 9 Master 3 (35 HP, 10 FP, 6 BP) = Level 9
Badges: Damage Dodge, Triple Dip
Items: Mushroom, Honey Super, Shroom Steak, Fried Shroom, Shroom Cake, Hot Shroom, Super Shroom, Volt Shroom
Damage: 9 (no guard), double hit damage: 5 + 6 (guard only once), triple hit damage: 4 + 5 + 6 (guard thrice for 9)
(Yeah, I'm only using mushroom items and I can't repeat them. The Shroom Cake goes out to GamerFourFun.)
T1: Hammer (5), Water Block
HP: 26, FP: 7
T2: Hammer (10), Squirt (16)
HP: 17, FP: 4
T3: Mushroom (22 HP), Squirt (22)
HP: 13, FP: 1
T4: Honey Super (23 HP, 6 FP), Squirt (28)
HP: 14, FP: 3
T5: Hammer (33), Water Block
HP: 5, FP: 0
T6: Shroom Steak (35 HP, 10 FP), Squirt (39)
HP: 26, FP: 7
T7: Hammer (44), Squirt (50)
HP: 17, FP: 4
T8: Hammer (55), Squirt (61)
HP: 8, FP: 1
T9: Shroom Fry (14 HP, 3 FP), Water Block
HP: 5, FP: 0
T10: Shroom Cake (15 HP, 10 FP), Squirt (67)
HP: 6, FP: 7
T11: Triple Dip Hot Shroom, Super Shroom, Volt Shroom (31 HP, 6 FP), Squirt (73)
HP: 22, FP: 3 (74)
T12: Hammer (79), Squirt (85)
HP: 13, FP: 0 (86)
T13: Hammer (Merlee, 94), Belly Flop (98)
HP: 4, FP: 0 (99, KO)
There is no real play by play for this strategy, but The Master will always do 9 damage if following the correct order of moves. Ending the fight with 5 HP for the actual fight was entirely coincidental. I probably could have created something more elaborate with cleaner numbers, but... eh. This was fun.