Black creatures can't attack unless their controller sacrifices a land for each black creature they control that's attacking. (This cost is paid as attackers are declared.)
"We shall oppose Lim-Dûl and his forces by any means necessary, even if the very earth be torn asunder."
—Arna Kennerüd, Skyknight
Near Mint - £0.50
Lightly Played - £0.50
Moderately Played - £0.40
Heavily Played - £0.30
Damaged - £0.20
Near Mint Non English - £0.50
Lightly Played Non English - £0.50
Moderately Played Non English - £0.40
Heavily Played Non English - £0.30
Damaged Non English - £0.20