Stonehorn question

Why does the earth shattering charge say "the two highest dice score a total of 10 or more, then 1 is added to each dice roll, for a total of 3D3+3 impact hits.".,., when everything I read says to only roll 2D6 for the charge, why does it say the "2" highest rolls?

Thanks

Well, unless it has Swiftstride, which is a special rule that allows you to roll 3d6 and drop the lowest in regards to charges, overruns, and fleeing; whether it has that or not, it's just clarifying that if you do end up rolling more than 2d6 for a charge, factor in only the highest two dice for 10 or more. Basically, trying to avoid people saying that if you roll 3d6, then the total of all three of those dice being 10 or more would work (Which would be wrong, but just trying to avoid people making errors ).

Its clarification in the event the Stonehorn got Swiftstride or other multiple dice on the charge for some reason.

Covering their butt from further rules changes.