The other day I was working on leveling my Charizard to lvl 100 with the E4 when the enemy's Krookodile (with intimidate ability) used Earthquake. This site says Charizard has immunity to ground type moves (a nice benefit of flying type) but it was super effective against me. Anyone have an answer to this?
(This was on Pokémon Black. Charizard was holding Lucky Egg.)