Draw a card for each creature you control with a +1/+1 counter on it. Those creatures gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)
: Add . Spend this mana only to cast an instant or sorcery spell.Craft with four or more red instant and/or sorcery cards (, Exile this artifact, Exile the four or more from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.), : Choose an exiled card used to craft Cosmium Catalyst at random. You may cast that...
Menace, Sacrifice Dusk Legion Sergeant: Each nontoken Vampire creature you control gains persist until end of turn. (When it dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
LifelinkCoven — Whenever Redemption Choir enters or attacks, if you control three or more creatures with different powers, return target permanent card with mana value 3 or less from your graveyard to the battlefield.
FlyingWhen Patron of the Vein enters, destroy target creature an opponent controls.Whenever a creature an opponent controls dies, exile it and put a +1/+1 counter on each Vampire you control.
Merfolk and Druid cards in your graveyard have retrace. (You may cast cards with retrace from your graveyard by discarding a land card in addition to paying their other costs.)
At the beginning of your end step, you may sacrifice a non-Demon creature. If you do, populate. (Create a token that's a copy of a creature token you control.)Sacrifice a non-Demon creature. If you do, create a 4/3 white and black Vampire Demon creature token with flying.