Rising Glaciers

Rising Glaciers enters the battlefield tapped.
{ut}, Return Rising Glaciers to its owner's hand:
Add {c}.
{4}, {t}: Put a permafrost counter on target
nonsnow land. That land loses all land types and abilities, becomes snow, and has "{t}: Add {c}" as long as it has a permafrost counter on it.
Return Rising Glaciers to its owner's hand
at the beginning of the next end step.