Meridia, the Bright Lady

Whenever a creature without decayed dies, return it to the battlefield under its owner's control with decayed.
Whenever a creature with decayed would leave the battlefield, exile it instead. Meridia gets +1/+1 for each creature a player owns in exile.
{2}{w}{t}: Goad target creature with decayed.
{2}{b}{t}: Prevent all combat damage that would be dealt this turn by target creature with decayed.