Haunter (Gen I) is a Ghost/Poison type combo. It evolves from Gastly (Ghost/Poison) at level 25 and evolves into Gengar (Ghost/Poison) when traded. It can also be found rarely on Route 7. Once you evolve Haunter into Gengar, you can Mega Evolve it with a Gengarite from the battle Colosseum.
Haunter is a purple, simply designed Pokemon with a jagged mouth and floating hands.
Fun Fact: Haunter is actually taller than its Evolution, Gengar.
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