Deathtouch, hasteWhenever Maestros Diabolist attacks, if you don't control a Devil token, create a tapped and attacking 1/1 red Devil creature token with "When this creature dies, it deals 1 damage to any target."
Blitz—, Pay 2 life. (If you cast this spell for its blitz cost, it gains haste and "When this creature dies, draw a card." Sacrifice it at the beginning of the next end step.)You may cast Tenacious Underdog from your graveyard using its blitz ability.
FlyingAs long as there are five or more mana values among cards in your graveyard, Aven Heartstabber gets +2/+2 and has deathtouch.When Aven Heartstabber dies, mill two cards, then draw a card.
LifelinkWhen Extraction Specialist enters, return target creature card with mana value 2 or less from your graveyard to the battlefield. That creature can't attack or block for as long as you control Extraction Specialist.
When Rocco, Cabaretti Caterer enters, if you cast it, you may search your library for a creature card with mana value X or less, put it onto the battlefield, then shuffle.
You may have Undercover Operative enter as a copy of any creature on the battlefield, except it enters with a shield counter on it if you control that creature. (If it would be dealt damage or destroyed, remove a shield counter from it instead.)
When Courier's Briefcase enters, create a 1/1 green and white Citizen creature token., Sacrifice Courier's Briefcase: Add one mana of any color., , Sacrifice Courier's Briefcase: Draw three cards.
Whenever you cast a spell, if its mana value is equal to 1 plus the number of soul counters on Obscura Ascendancy, put a soul counter on Obscura Ascendancy, then create a 2/2 white Spirit creature token with flying.As long as there are five or more soul counters on Obscura Ascendancy, Spirits you control get +3/+3.
FlyingWhenever All-Seeing Arbiter enters or attacks, draw two cards, then discard a card.Whenever you discard a card, target creature an opponent controls gets -X/-0 until your next turn, where X is the number of different mana values among cards in your graveyard.