Color Identity: B

Initial Card State
- Sign in Blood and Extra Turn Sorcery in exile (exiled by Spellweaver Helix).
- All other permanents on the battlefield (Scheming Silvertongue // Sign in Blood prepared).
Mana Needed
- ({B} magic symbol)
({B} magic symbol)
available.
Steps
- Cast the non-card copy of Sign in Blood from exile by paying ({B} magic symbol)
({B} magic symbol)
, unpreparing Scheming Silvertongue. - When you cast it, Spellweaver Helix's last ability triggers, allowing you to cast a copy of the Extra Turn Sorcery without paying its mana cost and take an extra turn after this one.
- Resolve the copy of Sign in Blood, causing an opponent to draw two cards and lose two life.
- When your opponent loses life, Bloodthirsty Conqueror triggers, causing you to gain 2 life.
- At the beginning of your second main phase, Scheming Silvertongue triggers, becoming prepared.
- Repeat each turn.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).