Magnet Stone. Makes certain Pokemon evolve when conditions are met.
Also make the Pokemon immune to Physical Ground attacks, but all Steel attacks, as well as Special Ground attacks are drawn to this Pokemon. Also if more than one Pokemon on the field are holding a Magnet Stone all stones are removed from the battle (but returned when the battle is over)
.....said an almost 30 year old married guy driving a van part time for a living 3ds my fc, 0602-6823-9646, my wifes 0146.9112.0071
Sounds cool, but why are special ground types dran to it? I could see magnetic material being in the ground; but really, if you hold a magnet to mud in your backyard, chances are you won't find anything magnetic.