THE FINAL BATTLE
Your party
You've got a full team of six, all at level 100 (the max) and all of whom look up to you and trust you completely.
There's Dragalge, a Poison/Dragon Pokémon you favor for his resilience against non-physical threats. His Poison typing covers Dragon's most crippling weakness (Fairy), he holds some Black Sludge to incrementally heal himself, and his Poison Point ability inflicts a weak poison on opponents that come in for contact blows. He knows Sludge Bomb (Poison), Dragon Pulse (Dragon), Hydro Pump (Water), and Venoshock (Poison).
There's your ace in the hole, a Pokémon of legend that you caught to face off against an enormous otherworldly threat (long story). The Psychic/Ghost Lunala possesses devastating power that will END most things she comes up against, her Shadow Shield ability shrugs off the first hit she takes, and her held item Leftovers recovers her health bit by bit to inch back up to full health and another Shadow Shield. She knows Moonblast (Fairy), Focus Blast (Fighting), Psychic (Psychic), and her signature move, the terrifying Moongeist Beam (Ghost).
The Normal-type Lopunny is one of your secret weapons. While not much on her own, she's capable of unleashing hidden potential through Mega Evolution, which transforms her into a Normal/Fighting-type with the help of the Mega Stone Lopunnite. In this form, her attacks are more vicious and her Scrappy ability lets her strike Ghost-types with Normal and Fighting attacks to which they'd be immune otherwise. She knows High Jump Kick (Fighting), Return (Normal), Fake Out (Dark), and Ice Punch (Ice).
Also in your party is the Bug/Steel Scizor, another vicious attacker aided by self-boosting and self-healing moves. His Technician ability gives a significant boost to what are normally weak attacks, and he holds a Life Orb that, for periodic self-inflicted damage, makes his attacks even stronger. He knows Bullet Punch (Steel), U-turn (Bug), the power-boosting Swords Dance (Normal), and the self-healing Roost (Flying).
You also have with you Rotom, an Electric/Ghost phantom that possessed a microwave oven to become Electric/Fire. This little fella specializes in non-physical combat, is immune to Ground moves with his Levitate ability, and he holds his own Leftovers. He knows Volt Switch (Electric), Overheat (Fire), the burn-inducing Will-o-Wisp (Fire), and Shadow Ball (Ghost).
Finally, you have your very first companion, the Water/Dark Greninja. He's traveled with you ever since he was a little Froakie; it's been as much his journey as yours. His speed can't be beat, his Protean ability changes his type to that of the move he uses, and he holds a Waterium Z. He knows Water Shuriken (Water), Rock Slide (Rock), Grass Knot (Grass), and the hazard-setting Spikes (Ground).
So yeah, you're pretty well off.