Imprisonment of 500 Years

Flash, Indestructible, This spell can't be countered, Enchant creature
Enchanted creature is a colorless land with "{t}: Add {c} to your mana pool" and loses all other card types and abilities.
"I made a wager with him that he could not jump out of my hand, then grabbed him, turned my fingers into the Five Elements Mountain, and sealed him under it."