To pull out the Golden Key, you must defeat all three planets (fire, ice, and jungle).
(see the related question for the links)
To draw the sword from the crystal stone, you must have defeated all three planets (jungle, ice, and fire) and have all three knights with you. (see the related questions)
it's in the astro belt at the bottom left coner area.you have to defeat the planets and have all the knights with you to get to the castle. once you have all the knights with you go to the astro belt then, go to the sword key and pull it out. after that you jump in the spining wheel thing.
It isn't a Sword in the Stone, it is a Golden Key in a crystal (on the secret asteroid at X-11 Y-84). But you still pull it out to reach the portal to the distant galaxy, where the Princess is being held. Defeat all three planets and bring the three space knights with you, or you cannot pull the key from the crystal.
On Astro Knights Island, the name Excalibur is given to the flying saucer that is crashed in the mud swamp to the right of the Mill. You can recover the hovercraft from the mill attic to reach it. The equivalent to the "sword" Excalibur is the Golden Key, which is locked in a crystal stone on the Giant Asteroid (X-11 Y-82). To draw the Key from the stone, you will need all three Space Knights, so you must first defeat all three planets (ice, jungle, and fire). (see related question)
To get Pegasus, you have to be in Astro Knights island on the Jungle Planet. When you pass the knight, after going on the swinging things you get to the knight. You should be able to jump over the bird eggs (There's a pattern to how they pop up) you click the cage and the unicorn will be set free. NOTE: You need the laser sword first, which is down below the purple flower springs.
At the very bottom of the jungle (you have to fall) in the middle.
You battle the "final boss", the Binary Bard (Mordred) in a robot warrior suit. It has spinning sword arms, fires homing projectiles, and drops bombs on the floor. You fight him as Merlin the owl, and then as your knight. (see related question)
it is a sword knights used in battle
Just fly all the way south toward the asteroid belt. Just search for a big glowing asteroid. It takes a little while to find it though.
a sword
In competitive play for the Phantom Knights archetype, the use of Phantom Knights Sword is allowed and can be a beneficial card to include in your deck strategy.
The name of Meta Knights sword is Galaxia.