At the beginning of your upkeep, sacrifice Nature's Wrath unless you pay {G}. 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.
NM-Mint - $3.20
Lightly Played - $2.90
Moderately Played - $2.60
Heavily Played - $2.30
Damaged - $1.60
NM-Mint Non English - $3.20
Lightly Played Non English - $2.90
Moderately Played Non English - $2.60
Heavily Played Non English - $2.30
Damaged Non English - $1.60