Powerhouse has the ability to drain energy off of other living things to increase her own power. She can absorb energy through contact with a victim, even brief contact like a punch. She has demonstrated the ability to fly, shoot destructive energy blasts, and super human strength to an unknown degree. I've got scans of her from
Spider-man No. 15 and from the french version (sorry

) of her appearance in the
Wolverine series. I hope you'll enjoy them, even if there isn't much...
In
Spider-Man,
the Beast was giving a lecture at ESU on genetics and
Powerhouse decided to show up and send her anti-human message there. Simultaneously, a mutant hater called
Masterblaster decided to make his presence and opinions felt at the same lecture. Though it is unclear whether one of them influenced the other's actions at the lecture,
Masterblaster came to attack
Beast, and
Powerhouse attacked humans there and the
Beast came to their aid and fought
Powerhouse. They fought back and forth, with
Powerhouse having the upper hand until
Spider-Man showed up.
In the
Wolverine issue,
Wolverine and
Warbird saw a news report of
Powerhouse attacking the area around the U.N. building, where an international debate on human-mutant relations was to happen. She was attacking everything in sight as a symbol of the way humans' attitude towards mutants was. Before long,
Wolverine and
Warbird joined the fight, and
Wolverine was flown into the air and landed on top of
Powerhouse so they could fight. However,
Powerhouse started draining
Wolverine's energy and
Warbird was doing more harm then good because she was drunk and being very reckless with her energy blasts. Eventually,
Powerhouse knocked out
Warbird. Without the drunk
Warbird to get in his way,
Wolverine managed to defeat
Powerhouse.
Source:
Marvel Comics Spider-Man Vol.1 No. 15, October 1991
Story & art by
Erik Larsen.

Source:
Marvel France Wolverine No. 73, January 2000
Originally published in
Marvel Comics Wolverine 133, January 1999
Story by
Erik Larsen, art by
Jeff Matsuda.