Holåbreen Glacier

Holabreen Glacier enters the battlefield tapped, and does not untap during your untap step.
Tap three untapped Islands you control. Untap Holabreen Glacier.
{x}{x}{u},{t}: Tap up to X target lands target opponent controls. Those lands do not untap during their owner's next untap step.
{t}: (Add {u} to your mana pool.)