winter biome

When a Void creature enters this void it gains hexproof until
it leaves this Void
{5}{x}{t} tap target creature your opponent
controls it doesn't untap during it's
next untap step deal X damage to that creature
if the creature were to die you gain hexproof
until the end of your next turn
you may only activate mana abilities for this Void
if it has a Void creature on it