Arcanite, just realised, in your Dragonite's information, it says his DW ability is Marvel Scale, rather than Multiscale, though the description is correct.
Team Leethoof:
Jet@Cheri Berry (Rock Head+Pressure)
HP: 100
Energy: 100
Speed: 150
Stats: 0
Status: Fine
Actions: Rock Slide -> Whirlwind -> Rock Slide
Team Arcanite:
Bench:
...
Gilgamesh@Link Cable (Guts+No Guard+Steadfast)
HP: 100
Energy: 82
Speed: 47
Stats: 0
Status: Fine
Moogle@Leftovers (Cute Charm+Technician+Skill Link)
HP: 8
Energy: 42
Speed: 133
Stats: 0
Status: Poisoned (2 DPA)
Bahamut@Dragon Gem (Multiscale+Inner Focus)
HP: 52
Energy: 79
Speed: 80
Stats: 0
Status: Taunted 2a, Badly Poisoned (3 DPA), Stealth Rock
Actions: Thunderbolt > Aqua Tail > Thunderbolt
New arrival Jet the Aerodactyl makes his entrance in typically grand fashion, throwing a storm of rocks at the mighty Bahamut, who responds with a massive bolt of electricity, but he expends slightly more energy then usual - understandable given the terrifying opponent he faces! Bahamut follows up by using water moisture in the air to smash Jet with an Aqua Tail attack! Vicious! But Jet has prepared a powerful gust of wind, that appears to be sending Bahamut back to his Pokéball, but not before the two battlers exchange a repeat of their first actions! Firion the Arcanine is sent out to replace the weakened Bahamut, but the Stealth Rocks bite him hard as he enters! This raises an interesting point - with the Stealth Rocks out, Moogle and Bahamut cannot switch in again without fainting! Perhaps Vanguard's sacrifice was not in vain! Don't count Leethoof out yet folks.
The arena remains frozen, but the anti-hax machine goes kablooie.
Calcs:
Team Leethoof:
Jet@Cheri Berry (Rock Head+Pressure)
HP: 40
Energy: 83
Speed: 150
Stats: -1 Atk
Status: Fine
Team Arcanite:
Bench:
...
Gilgamesh@Link Cable (Guts+No Guard+Steadfast)
HP: 100
Energy: 82
Speed: 47
Stats: 0
Status: Fine
Moogle@Leftovers (Cute Charm+Technician+Skill Link)
HP: 8
Energy: 42
Speed: 133
Stats: 0
Status: Poisoned (2 DPA)
Bahamut@Dragon Gem (Multiscale+Inner Focus)
HP: 5
Energy: 52
Speed: 80
Stats: 0
Status: Badly Poisoned (1 DPA)
Firion@??? (Intimidate+Flash Fire+Justified)
HP: 85
Energy: 100
Speed: 95
Stats: 0
Status: Fine
Stealth Rock
Arcanite, attach an item to Arcanine, and then Leethoof will order!