Mia, Umbramancer Adept

Shadow Ward-For every 2 life spent casting this
spell, put a shield counter on Mia.
{p/b}{p/b}{p/b}{t}: For each creature that died this turn
create a black 1/1 shadow token. If five or more creatures died create a black 5/5 shadow token.
If ten or more creature's died this way create
a black 10/10 shadow token.