As I read it, the first unarmed strike is normal, then if you hit strike #2, it's normal+1d8, strike #3 is normal+2d8, strikes # and beyond are normal+3d8. When you end the turn, the d8s go away. As written it doesn't appear to have an impact upon reaction attacks.
JanxSpirit
2022-02-06 05:12:13 +0000 UTC
Neat! Is the stacking done all in the same turn, or the next turn? Like if you hit, do 1d8 extra fire, then hit again in the same turn -- is it now 2d8? Or would it be 1d8 all in the first turn, 2d8 all in the second turn, 3d8 all in the third?