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{{Spell
  | type = Incantations
  | name = Sunder
  | school = Transmutation
  | class1 = Swordmage
  | class1level = 3
  | time = 1 attack action
  | range = Melee Attack
  | dur = Instantaneous
}}
''With a mighty hammer, the Swordmage quickly dismantles the lumbering construct.''

This Incantation makes a single melee attack with a ''+1 Construct-Bane Warhammer'', and successful hit leaves a weak-point that others can target, robbing the Construct of its immunity to Critical Hits (or, for Living Constructs, their innate Light Fortification property). This weak-point remains until the Construct is repaired (either via magical means such as the ''Repair Damage'' spells or through crafting as described in the Craft Construct feat). Any amount of repair removes this weakness.