Magmacharged Megacolossus

Magmacharged Megacolossus can't have haste
and can't be blocked.
When Magmacharged Megacolossus enters the battlefield, put a number of +1/+1 counters on it
equal to the number of lands you control.
When Magmacharged Megacolossus deals
damage to an opponent, put a +1/+1 counter on
it for each land that opponent controls, then
gain control of target land that opponent
controls.