Infinity Blade

The Infinity Blade is a sword weapon that can be forged by combining the Galaxy Sword with three Galaxy Souls in the Forge. It is the strongest sword in the game, making it the top-tier melee weapon for players who want the highest possible damage output from a sword.

Because it is forged from the Galaxy Sword, the Infinity Blade is part of the late-game weapon upgrade path tied to the Volcano Dungeon and the Forge. Once created, it replaces the Galaxy Sword as the ultimate sword option and is generally the preferred choice for combat-focused players, especially in the deeper floors of the Skull Cavern or the Volcano Dungeon where maximizing damage and reliability matters.

Obtaining the Infinity Blade also unlocks the Infinite Power achievement.

• The Infinity Blade is a sword, so it benefits from the standard sword move set rather than the special attack pattern of clubs or the reach of daggers.
• Since it is the final upgrade of the Galaxy Sword line, it is best pursued after the player can consistently obtain Galaxy Souls.
• Its value is primarily in raw combat performance; it is the most powerful sword available and is intended for endgame use.