Sora was actually a soldier from the Fusion Dimension's Duel Academy
Its a favorite in mid-powered cubes, though, or just for people who get nostalgic for this era of Magic
When your opponent only has smaller Characters left, you can send back your own Characters you no longer need, especially low-cost ones like "OP03-112 Charlotte Purin," in order to recover your Life.
Instead of Cycle of Life, try Combine Guildmage, Cytoplast Root-Kin, Emiel the Blessed, Good-Fortune Unicorn, Ivy Lane Denizen, or any other card that just gives creatures a +1/+1 counter whenever they enter the battlefield
Golden Duelist Collection Card Sleeves Accessories Golden Duelist Collection Card Sleeves There's no better way to protect your cards during a Duel
And of course, the real draw of this card: you can give ANY creature ninjutsu, like some kind of blue-black Sneak Attack