At the beginning of each of your main phases, if you haven't added mana with this ability this turn, you may add X mana of any one color, where X is the number of Islands target opponent controls.
NM-Mint - $3.30
Lightly Played - $3.20
Moderately Played - $3.00
Heavily Played - $2.70
Damaged - $2.20
NM-Mint Non English - $3.30
Lightly Played Non English - $3.20
Moderately Played Non English - $3.00
Heavily Played Non English - $2.70
Damaged Non English - $2.20