Space King Arthur of Cosmo-Camelot

CNT Ability

If you have 2 or less life left, you may set this card.

Ability

■ You can normal summon this or set it.
■ "Final Guardian" - Game 1: When your remaining life drops to 0, you may normal summon this from your set zone. When this unit enters play due to this ability, heal 1 life and then end the turn. (After using an ability with Game 1, you cannot use any ability with the same name for rest of the game.)
Double Attack

Just who is this mysterious cosmic knight, who appears out of nowhere to save innocents from danger?