Very solid Defender. The normal typing and solid HP are good, and having both high CP (to be able to slot into gyms freely) and Play Rough as a charge move are great. As an attacker, it's kind of just a worse, potion-heavy Machamp/Heracross. But it's got a slightly higher DPS than Donphan with the same sort of moveset.
That said, Hyper Beam does more DPS than Close Combat on attack, except against TTar.