We Are The Calvary

At the beginning of your upkeep reveal cards
from the top your library. If it's a creature card
that shares a creature type with a creature you control, you may cast it without paying its mana
cost. if you don't cast it, put it on the bottom of
your library.
Nontoken creatures you control have riot. (They
enter the battlefield with your choice of a +1/+1
counter or haste.)
"The Hierarchs demand the elimination of these
humans! You must not fail!"