Invel Yura

When Ivel Yura enters the battlefield, all your
lands become snow permanents.
{2}{s}: Tap target creature and put an ice counter
on it. Creatures with ice counters on them don't
untap during their controllers' untap steps.
{4}{s}: Choose two players. Whenever damage is
dealt to one of the chosen players, the other
chosen player also loses that much life.