Pro: Urogt's Q has a range, as long as the target it visible and is poisoned, the range is ALMOST infinite. With the items, runes and masteries, the damage output is almost unbareble. He has a lot of health, with a passive slow (with the frozen mallet and the shield) and his passive allows his attacks and abilities to deal true damage.

Con: Urgot has a weak early game, so be careful when trying to push. His shield is good but is very weak (considering it goes off of AP). Teamfights, since you have a crazy damage output, you normally get focused down quickly, so keep a distance.

When farming minions DO NOT use you e unless there is no champs around. it will screw up your lock-on Q.