The wiki is often wrong, and can stay wrong for years. I believe a lot of the wiki's information was directly pulled from other websites initially. The problem with that is a lot of the pulled information is not in line with P99's timeline. Most likely Cannibalize 3 was buffed after Velious to take less HP per cast, and that post Velious buff is the value displayed on the wiki. Allakazam has the same numbers as the wiki, for example, but Allakazam usually uses more up to date values, since it gets updated based on the Live servers.
https://www.project1999.com/forums/s...d.php?t=151273
This post from 2014 suggests Cannibalize 3 takes 100 HP and gives 39-46 mana. Nobody corrrected him on those numbers, and it obviously hasnt been changed any time between 2014 and now.
Unless someone brings evidence of Cannibalize 3 having different numbers during the Velious era or before, the wiki should just be corrected. The devs will not change it unless strong evidence is provided.