I was wondering if the damage dice list for Arsinoitherium (4d8+13) is a misprint. It just seems ridiculous.
A Rhino has 2d6+9, and a powerful charge listed as 4d6+12.
A Wooly Rhino has 2d8+13, and a powerful charge listed as 4d8+18.
Arsinoitherium has 4d8+13, and a powerful charge listed as 4d8+13.
It just doesn't jive. both Rhinos have the powerful charge damage dice increased two size categories and strength modifier doubled.
The Arsinoitherium has the exact same ability scores as a Wooly Rhino but with better AC and one more HD. All this for a CR rating of 7, one more than the Wooly Rhino. But it also has this outrageous attack dice.