Nature is mistakenly set when the moveset contains a move with "Nature" as first word.

[hzla]

damage-calc/src/js/moveset_import.js

Line 161 in d4a87ef

if (currentNature[1] == "Nature") {

Specifically importing a mon with the move Nature Power will cause a faulty nature to be set and will default the nature to be displayed as "Hardy". Can be resolved by making sure the line being read isn't a move or making sure the nature hasn't already been set.