Neil, you get a seaking named "LaserPower"
This seaking must be the most epic seaking EVER! To do this you must give it Hyper Beam! That's it......wait, you thought I meant that's the only restiction? Hahaha no, that's the only attack you can use, what's that? that's insane? just for that solo 1 glmp to evolve (you can't teach it hyper beam yet so use whatever) and solo 5 pokemon in the league.