Bob-ulk

Bob-ulks are the largest of the Bob-omb species, and are purple. They are also the most powerful, and the most armored. Bob-ulks are solely found in Paper Mario: The Thousand-Year Door's Pit of 100 Trials. They're related to Bulky Bob-ombs. "Bob-ulk" is word play on "bulk", meaning very large. To attack, they first charge themselves up, and then they explode after a few turns. If another explosion occurs, they explode with them. Oddly, Goombella says that they are the biggest Bob-ombs she has ever seen, however their slightly weaker sub-species, Bulky Bob-omb is a tiny bit larger in the Tattle Log. Dark Fawful Bombs and Bob-ulks have a similar look.

After lighting their fuses, they raise their defense by three. On the third turn they raise their attack, and then charge themselves and raise their attack by nine before exploding.