The sidebar link to Classes and Feats says the following about the special Monk ability named Eagle Claw:

Eagle Claw
8 Monk levels - 1x Stunning Fist per use
Touch Attack. On hit, inflicts magic damage [Monk unarmed base damage + STR modifier + DEX modifier + WIS modifier], as well as applying an Armor Class penalty of 1 per 10 Monk levels [minimum of -1, caps at -3] for Monk Level/Round. A critical hit doubles the base damage + STR modifier. Unstackable.

It's not providing the highlighted magical damage. I have a screenshot where my Monk Chaggo Stones uses it on a Troll with a result of 20 Damage. He has a +10 Dex Mod, a +10 Wisdom Mod, a +5 Strength Mod, and a 1-20 Unarmed Base Damage. His damage range should be 26-45. A result of 20 shouldn't even be possible.

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Chaggo - Colorful Hobgoblin Monk
Baegrevele Tsjos - Borne at sea, Live at sea, Die at sea.

Found an error in the calculations and this should be fixed for the next update which is 5.16b