Color Identity: U, B, R

Prerequisites

  1.  
    True Polymorph
    True Polymorph     in hand.
  2.  All permanents on the battlefield.
  3. An opponent cannot block creatures you control.
  4. ({4} magic symbol)  ({U} magic symbol)  ({U} magic symbol)   available.

Steps

  1. On the end step prior to your turn, cast
    True Polymorph
    True Polymorph     by paying ({4} magic symbol)  ({U} magic symbol)  ({U} magic symbol)  , causing
    Bloodthirster
    Bloodthirster     to become a copy of
    Eye of Vecna
    Eye of Vecna    .
  2. Activate
    The Book of Vile Darkness
    The Book of Vile Darkness     by tapping it and exiling it,
    Bloodthirster
    Bloodthirster     and
    Hand of Vecna
    Hand of Vecna    , causing you to create a legendary 8/8 Vecna token that has all triggered abilities of the exiled cards.
  3. During your next turn, deal combat damage to an opponent using Vecna.
  4. Vecna triggers, causing you to untap it and to get an additional combat phase after this one.
  5. Repeat from step 3.

Results

  1. Infinite combat damage.
  2. Infinite combat phases.

Metadata

  1. In 0 decks according to EDHREC.
footer