Marit Lage, Bound by Depths

Ward {3}
When you cast a spell. Place one "Unsealing" counter on Marit Lage, Bound By Depths. If that spell was a Snow spell. Place two of those counters instead.
{s} Place two "Unsealing" counters on Marit Lage, Bound By Depths.
As long as there are less than 10 "Unsealing" counters on this card. This Creature cannot attack or block.
If there are 20 or more "Unsealing" counters on this card. Transform Marit Lage, Bound By Depths.