Desecrated Tomb + Lier, Disciple of the Drowned + Merfolk Secretkeeper // Venture Deeper + Phyrexian Altar

U identity

Commander legal

The 4 combo pieces

How to execute it

  1. Activate Phyrexian Altar by sacrificing Merfolk Secretkeeper, adding {U}.
  2. Cast Venture Deeper for its flashback cost by paying {U}, causing target player to mill four cards, then exile Merfolk Secretkeeper.
  3. Desecrated Tomb triggers, creating a 1/1 Bat token.
  4. Activate Phyrexian Altar by sacrificing a Bat token, adding {U}.
  5. Cast Merfolk Secretkeeper from exile by paying {U}.
  6. Repeat.

What the combo produces