A physically skewed ghost-type isn’t something you see everyday, and its nice to know that it has secondary typing to compliment it. It has stats similar to Druddigon, with high attack power and great defenses and HP.
When you get it, Magnitude and DynamicPunch will be the only usable moves it knows. They’re powerful, but at the same time, it’s pretty sad, specifically because it doesn’t know Shadow Punch (I suggest using the move relearner to get it though!), so it won’t be able to use its ghost-typing quite yet.
However, it evolves at a pretty nice level (43), so you’ll have access to its higher stats before you walk in to the E4. As for its competitive potential, I think with Iron Fist (ability), Shadow Punch, and DynamicPunch, it can do really well. Teach it Earthquake and Stone Edge/Rock Slide for good measure, and you’re done with a set!
As a sidenote, if you’re in need of a good flyer but feel the need to have a reanimated robot on your side, this guy’s the one for you. It has access to the HM Fly, so if that affects your decision, who am I to tell you it’s a great idea to use it? ;)
In sum, this flying robot gets nothing but praise from me. You may need to do a bit of work to get its most powerful move (Shadow Punch) out, but it’ll all be worth it.