Talk:Huge Floating Castle, Aincrad/@comment-33052195-20191119051837/@comment-24612605-20191119052926

It doesn't

it searches this or heathcliff by discarding one card

and if it happens to be in the soul of heathcliff,  heathcliff cannot be  destroyed by battle ,  cannot be returned to the hand, and protects his soul.

Oh and it's size 1 and costs nothing for its soul cost.