This behemoth is so large a full scale battle could be waged on its back. It lumbars towards the town center causing damage as it walks and with its immense rock arms. It is able to walk over walls and due to its massive size. can't be stunned or controlled by most means and has a high impact shield that helps absorb high damage attacks.
The Colossus receives max of 200 damage per attack
It reduces damage by 10%, and by 20% at level 4
Damage while walking is half the damage per attack
The splash radius while walking is 2.5 tiles
Damage dealt upon death is 3x the damage per attack
After the town centre is destroyed, the colussus stops attacking