This is the attack tag editor.

Use the Up and Down arrow keys (or PgUp, PgDn, Home, and End) to navigate through the menu.

Use the Left and Right arrow keys to change values, or you can type in numbers.

You can also hold the ALT key and press the left and right arrow keys to change which attack you are editing, or while holding ALT you can type an attack ID number.

There are 2 tag settings, each divided into 3 sections.

Tags are set at the moment of the attack hitting or missing, and are set before attack chains are evaluated (except for Instead chains) and before counter-attacks happen.

On: This is the condition that triggers the tag setting.

* Never - This means that the tag
  setting is entirely disabled.

* On Use - This means the tag setting
  will be activated any time the
  attack is used.

* On Hit - This means the tag setting
  will only be activated if the
  attack succeeds.

* On Miss - This means the tag
  setting will only be activated if
  the attack misses or fails.

* On Kill - This means the tag
  setting will only be activated if
  the attack kills at least one of
  its targets.

* On Targetting Failed - This means
  the tag setting will onlt be activated
  if the attack has no valid targets.
  This is only updated when a hero or
  enemy actually attempts targetting the
  attack, or if the attack exists in the
  battle menu of a player-controlled
  hero or enemy on their turn.

If Tag: This is a tag number that is checked before a tag is set. Press ENTER or SPACE to browse available tags, or press BACKSPACE to clear. Press - to toggle between requiring the tag to be ON or OFF. If this is left as "NONE" then the tag in the next line will be set without requiring any tag check first.

Set Tag: This is the tag that will be turned ON or OFF when the attack is used (at the same instant that the damage is dealt). Press ENTER or SPACE to browse available tags, or press BACKSPACE to clear. Press - to toggle between turning the tag ON or OFF.
