Type effectiveness

Type effectiveness is a phenomenon that is a staple of the Pokémon series, as well as appearing in a small way in Super Smash Bros. Brawl.

In the Pokémon series, each Pokémon has one or two types, and each attack has one type. Whenever an attack hits a Pokémon, the damage dealt is altered by any weaknesses or resistances caused by the type combination. For example, a Water attack will deal double damage to a Fire or Rock Pokémon, while a Grass attack will deal half damage to a Water type.

While type effectiveness is generally nonexistant in the Super Smash Bros. series, it does exist in a small capacity in Super Smash Bros. Brawl. Pokémon Trainer's three Pokémon, Squirtle, Ivysaur, and Charizard, are affected by a stripped-down version of type effectiveness. Out of Flame, Water, and Grass attacks, if one of the three Pokémon is hit by an attack they resist, they take 10% less knockback. However, if the attack is super effective, they take 10% more knockback.

While the effect of type effectiveness is minor in Brawl, it is not insignificant. Most importantly, it causes Ivysaur to be KOd at lower percentages by fire attacks than other characters, which is a weakness as the other two Pokémon are not weak to attacks that are as common as fire.