This MR fixes the following sanity check issues and reviews the ignored values list.
OnlyUsedOnce: Ignored but found more than once: DivLegal OnlyUsedOnce: src/Mods/SecExp/attackHandler.tw: 464:38: atkMod OnlyUsedOnce: src/Mods/SecExp/attackHandler.tw: 465:38: defMod OnlyUsedOnce: src/Mods/SecExp/attackHandler.tw: 466:44: tacChance