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Power Master 1: A Strange Journey
In Power Master 1: A Strange Journey, Hammer Swords are rare weapons. When equipped, it grants the wielder the Armor Break skill and increases Offense by 25. The only one in the game can be collected in Fora Temple, behind boulders the player needs to blow up with a Bomb.
Power Master: A Strange Journey MV
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In Power Master: A Strange Journey MV, the weapon is renamed Breaker Sword. When equipped, it grants the wielder the Armor Break skill and multiplies Offense by 1.15. It is also effective against enemies with Shields.