I'll use Eevee, Ninja will use Swinub.
Swinub
Attack Power: 4
Special Attack: Deal 3 damage. If you roll an even number, deal +2 damage. If that number is 4, deal +4 damage.
Ability: If your opponent rolls a 5, take -2 damage.
Attack Power: 3
Special Attack: Deal 2 damage. If you roll an even number, deal +4 damage.
Ability: Eevee gains +2 attack automatically.