Marsh, Soul Painter

Whenever another creature you control would
die, you may pay {w}{b}. If you do, instead exile it,
then create an X/X colorless Shard creature
token, where X is that creature's mana value.
Whenever a Shard you control attacks or dies,
each opponent loses 1 life and you gain 1 life.
{1}, Sacrifice a Shard: Marsh gains protection
from the color of your choice until end of turn.