Zurgha, Scourge of Barovia

Snow landwalk, Undying
Zurgha, Scourge of Barovia has +1/+0 for each
time you have cast them from the command zone.
{s}{x}: Zurgha fights target creature, where X is
target creature's mana value. If target creature dies,
its controller's lands become snow lands until end of
turn. Activate as a sorcery and only once each turn.
"I shall... wait for... my star."