The most powerful sword in the Zelda series is the Master sword. This in game weapon is said to have hidden secrets and only the chosen characters are able to wield it.
The Master Sword.
The Cronicle 2 Sword is the most powerful sword in the game.
Tiatenzoa
the variations of the big goron sword
The most powerful sword in the video game 'Final Fantasy' was the Ragnarok sword that was featured in the 'Final Fantasy Tactics A2:Grimoire of the Rift' game.
the level 20 default sword is probly the most powerful
Onyx Sword from Onyx Giant. If your talking about the Ps2 version. (Yes, the onyx sword is the most powerful sword in Easy, Medium, Hard levels of the game but not in Extreme mode on the PS2 console.)
The cumberland sword. It is very rare and hard to find.
there is the master sword and that is the best sword in the game. (it should have been the best in every game because it is the sword that is evils bane but apparently some rocking eating monsters can make a better one!)
The last sword in Chibi Knight is the Soulreaper Sword. It is the most powerful sword in the game and is obtained by defeating the final boss, the Dark Lord. Good luck!
The most powerful sword is the Ebony blade by far, it dosent do much but with it, you are absolutly unable to die, every sucessful hit drains the life from the target healing you and dealing extra dmg... I LIKE PIE!
The hand and a half or "bastard sword" is one of the most versatile sword types. It could be used single handed with a shield or two handed for powerful cuts and was capable of both cuts and thrust.