Card Text:
At the beginning of your upkeep, sacrifice Nature's Wrath unless you pay
![Green](/Handlers/Image.ashx?size=small&name=G&type=symbol)
.
Whenever a player puts an Island or blue permanent onto the battlefield, that player sacrifices an Island or blue permanent.
Whenever a player puts a Swamp or black permanent onto the battlefield, that player sacrifices a Swamp or black permanent.