Frost Islands

{t}: Add {u} to your mana pool
{4}{t}: Choose any number of players and/or permanents that have counters on them, then
remove one of each kind of counter that are
already there on these players or permanents
The Frost Islands used to be the nest of a gigantic
dragon. Many heroes lost their lives trying to slay the
beast, turning it into a barren place of desolation and
death.