Groudon

Groudon is currently ranked #1 most commonly used Pokémon.

Type
Groudon is a Ground Pokémon, that becomes a Ground/Fire Pokémon in its Primal Form. Since Groudon is used in its Primal Form nearly 100% of the time, its defences will be listed for that form only.

Offensive
Fire moves are super-effective against: Fire moves are not very effective against: Ground moves are super-effective against: Ground moves are not very effective against: Types that are immune to Ground moves:
 * Grass
 * Ice
 * Bug
 * Steel
 * Fire
 * Water
 * Rock
 * Dragon
 * Fire
 * Electric
 * Poison
 * Rock
 * Steel
 * Grass
 * Bug
 * Flying

Defensive
Types that are super-effective against Ground/Fire Pokémon: Types that are not very effective against Ground/Fire Pokémon: Types that have no effect on Ground/Fire Pokémon:
 * Water
 * Ground
 * Fire
 * Bug
 * Steel
 * Fairy
 * Electric

Moves
Moves Groudon usually carries are:
 * Protect
 * Precipice Blades
 * Fire Punch
 * Rock Slide
 * Eruption
 * Earth Power
 * Swords Dance

Items
Items Groudon usually carries are:
 * Red Orb

Ability
Groudon's ability is Drought.

Nature
The most common natures for Groudon are:
 * Jolly
 * Adamant
 * Brave
 * Timid
 * Modest

Team members
Common team members for Groudon are:
 * Kangaskhan
 * Xerneas
 * Salamence
 * Kyogre
 * Thundurus
 * Smeargle
 * Cresselia
 * Talonflame
 * Yveltal