Changes

|style="background:rgb(255,255,255)" | Force attack to be Physical Attack affected by Darkness (unusedbut works)

The 0004 bit here causes darkness to halve the accuracy byte when the ability data is loaded. The fact that this bit is unset for all enemy attacks is the true cause of the infamous "darkness bug", likely the design intentwas to make this interaction configurable on a per-action basis, but then enemy actions were just never flagged. The other Unused ones don't seem to have any immediately obvious effect on damage calculation and they aren't used in any attack available to player or enemy. They are probably place-holders for temporary variables set during damage calculation.