Prepare for Trouble, Make it Double, Aarantula

Badges: Charge, Mega Rush = 2 BP
Items: Fright Mask, Power Punch, Shroom Fry
Mario HP: 10, FP: 5, BP: 3 (Level 1)
Condition: Double or Nothing (Damage dealt must be either x0 or x2 the total damage dealt by the X-Nauts' side in between attacking turns.)
T1a: Charge (+2)
T1b: Stomp. Mario HP: 9, FP: 4 (Damage taken this turn: 1)
T2a: Fright Mask
T2b: Stomp. X-Nauts throw rocks. Mario HP: 5, FP: 4. (Damage taken this turn: 4)
T3a: Spin Jump (8)
T3b: Stomp (Miss). Mario HP: 3, FP: 2 (Damage taken this turn: 2)
T4a: Spin Jump (12)
T4b: X-Fists deployed. Mario HP: 3, FP: 0 (Damage taken this turn: 0)
T5a: Swap to Koops, Shroom Fry (Mario)
T5b: X-Fists and Tremor are used, miss guard on only one of the X-Fists.
Mario HP: 1, Koops HP: 14 (Damage taken this turn: 9)
T6: Power Punch (Mario), Spin Jump (30, KO)
NOTES
I don't know if the condition I used was worded properly, but I trust that it'll be understood what I was going for. Namely in that however much damage Mario's party takes, the number isn't reset until Magnus acts again. Also, that the "X-Nauts" refers to Magnus himself, his X-Fists, and the X-Nauts in the audience.
If there's anything about this that I feel may raise some eyebrows, it's that I had to start the fight with a partner that has 0 HP. I don't think it should be all that big a deal since Mario's HP is still at max and it isn't like I'm abusing danger or peril, it's just a way I figured would work in eliminating RNG.
Yes, I seriously did use a Fright Mask. Could have as easily used a Mini Mr. Mini or Sleepy Sheep since the aim was to provoke the X-Nauts in the audience to damage Mario and I needed an item guaranteed to fail so as to not burn my charge or introduce any RNG into the fight. And I couldn't provoke the audience first and charge after because then the X-Nauts wouldn't throw their rocks.