Tonpa - the "Rookie Crusher"

Tonpa is the self-proclaimed “rookie crusher” of the Hunter Exam. After trying and failing to become a hunter himself, Tonpa began to enjoy watching those around him fail and eventually he quit trying to pass the test and actively took part in crushing the ambitions of others.

Strength

• Kills a giant pig and carries it. (source)
• Steals a spider-eagle egg and climbs the side of a cliff while carrying it. (source)

Durability/Stamina

• Ran well over 80km, including up stairs, while barely breaking a sweat. (source)
• Is knocked out by a hard kick to the face by Kurapika. (source)

Speed

• Is able to outspeed a boulder barreling after him, keeping pace with Killua and outrunning Leorio. (source)
• Was much faster than Leorio, even though he was suffering from bad stomach problems. (source)
• Gets speed blitzed by a post-nen Killua. (source)

Miscellaneous

• Has survived the Hunter Exam 36 times, starting from the age of 10. (source)
• It is implied that Tonpa would pass the Hunter Exam if he tried. (source)
• Tonpa holds the record for most successive attempts at taking the Hunter Exam, and the second most attempts overall. (source)
• Carries juice laced with a strong laxative that will put those who drink it on the toilet for three days with a single gulp. (source)
• The laxative is nearly completely tasteless and odourless. (source)
• Those resistant to poison are unaffected by the laxative. (source)
• Drinking five cans will cause the drinker to die of dehydration. (source)
• Is very skilled at messing with others psychologically, using this talent to pit Hunter Exam rookies against each other. (source)
• Is very observant and has an excellent memory. (source)