As long as Magmar is an Evolved Pokémon, all Energy attached to Magmar are Fire Energy instead of their usual types.

Linear Attack

Choose 1 of your opponent's Pokémon. This attack does 10 damage to that Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.)

Burning Sensation

40

If the Defending Pokémon already has any damage counters on it, the Defending Pokémon is now Burned.