A rank dungeon

when this enters the Battlefield put a creature under it fights a 4/4 if it dies you may scary 1 draw a card. on your next upkeep you fight a 5/5 if it dies you may scry 1 draw 1 and create a 1/1 shadow knight. on your next upkeep you fight a 6/6 if it dies you may scry 2 draw 2 create 2 1/1 shadow knight. on your next upkeep you fight the boss 8/8 and scry 2 draw 2 create 2 shadow knight and heal 5 and discard this card