By beating him five time, it can unlock Great Shogun Shien and by beating him ten times, he can be unlocked as a tag partner
Keep in mind that, sometimes, errors in the official printing process do occur that can cause a card to be incorrectly cut, aligned on the card stock, or even accidentally crimped in the printing process
However, I feel that this summoning condition has a high combo potential, and like Birdman, the benefits of the card pool seem to be high, so I think it may be possible to break out in the future
The card is only worth a penny though, so there's no use buying an entire starter deck for it
The loyalty counter on the creature is in for a long wait, unless it's a Gideon or a Sarkhan planeswalker that's currently a creature
So, you can imagine my surprise when I came to learn that this card is worth simply because they misprinted (or ghost printed) the 1st edition stamp in the corner