Offshore Account

{2}{t} Give one of your lands to an opponent with
3 Offshore counters. Remove one Offshore
counter from every land during your upkeep. Your lands return
when there are no more Offshore counters and
tap for double mana but generates colorless mana.
{t} Sacrifice Offshore Account for the amount
of mana all opponents could generate without
their lands. Use mana generated this way in
any way.