Ghost

Ghost moves are ×2 against Ghost and Psychic; Ghost Pokémon are immune to Normal and Fighting, resist Bug and Poison, and are weak to Dark and Ghost.

Look up the type matchup matrix View defense in the matrix

Two-way summary

When attacking

×2 Increased (×2): Psychic
Ghost
×½ Reduced (×½): Dark
×0 Immune (×0): Normal
×1 Neutral (×1): 14 neutral types — open the full table below

When defending

×2 Increased (×2): Ghost
Dark
×½ Reduced (×½): Poison
Bug
×0 Immune (×0): Normal
Fighting
×1 Neutral (×1): 12 neutral types — open the full table below

These multipliers describe how a move interacts with the defending type in the current reference chart; they are not final damage and have not been verified for Pokémon Champions.

×2 Increased (×2)
×1 Neutral (×1)
×½ Reduced (×½)
×0 Immune (×0)

How does adding Ghost change things?

moves

Arcanine

Arcanine

Fire

Multiplier on Fire: ×1
Result: ×1

Ceruledge

Ceruledge

Multiplier on Fire: ×1
Multiplier on Ghost: ×2
Result: ×2