| Butch's Mightyena|
| Episode captured:
|| Prior to Oaknapped!
| Current location:
|| With Butch
Butch's Mightyena is a dark-type Pokémon owned by Butch.
Mightyena debuted in Oaknapped!
, where it went up against Tracey's Scyther
and Ritchie's Taillow
alongside Cassidy's Sableye
. It appeared again in A Date With Delcatty
, where it battled Casey's Meganium
. Its last appearance was in Luvdisc Is a Many Splendored Thing!
, where it battled Luverin
and ended up accidentally blasting off Butch and Cassidy
with a Hyper Beam
. It was Butch's first known Hoenn Pokémon.