Sunken Colony

When Sunken Colony enters, put a creep counter on target land. At the beginning of your upkeep, you may pay {2}. If you do, put a creep counter on target land that you control. Whenever a creature attacks you or a planeswalker you control, Sunken Colony deals X damage to that creature, where X is the number of lands with creep counters on them you control. Whenever Sunken Colony becomes the target of a spell or ability an opponent controls, you may sacrifice it. If you do, create 3 1/1 black Zerg Broodling creature tokens with haste.