If one of them resolves, it will remain in effect until the game ends, Evolved Sleeper leaves the battlefield, or some subsequent effect changes its characteristics, whichever comes first
With auras that can recur themselves like Giant Inheritance, Umbra Mystic can be very difficult to get rid of
Moonshaker Cavalry People are calling Moonshaker Cavalry "the white Craterhoof Behemoth" and with good reason
You even get a big sorcery in Awaken the Blood Avatar that synergizes with sacrifice cards
Scheming Symmetry I adore Scheming Symmetry, but it requires some finesse
Fuming Effigy Unlike other cards that may trigger only once when creatures leave your graveyard, you can use Fuming Effigy as a finisher to start pinging the whole table at once