Yangdi from the Sui Dynasty

{t}Create a 0/2 great wall of china; If one already exists, then add 2 +1/+1 counters on it
{4}Sacrifice a creature: Create a 2/2 1,200 mile long Grand Canal with when this creature dies, target opponent sacrifices a creature
{x}Do x/2 damage to any target while launching an attack on korea. It was unsuccessful
{ut}{b/g}Sacrifice this creature: Cause the dynastic cycle to end yangdi's reign. Create a 3/3 mob token in its place.