How can you create a combo with Triskaidekaphobia, Tree of Perdition?
user
[START OF COMBO]This combo can be formed with Triskaidekaphobia, Tree of Perdition

Color identity: B
Mana cost: 
Steps:
  1. At the beginning of your upkeep, Triskaidekaphobia triggers; hold priority.
  2. Activate Tree of Perdition to make target opponent's life total 13.
  3. Allow Triskaidekaphobia's trigger to resolve, making that opponent lose the game.[END OF COMBO STEPS]

Result:
  - Target player loses the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant