How can you create a combo with Reyhan, Last of the Abzan, Evolution Witness, Ashnod's Altar?
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[START OF COMBO]This combo can be formed with Reyhan, Last of the Abzan, Evolution Witness, Ashnod's Altar

Color identity: BG
Mana cost: 
Steps:
  1. Cast the creature with MV<=2 by paying its mana cost if it doesn't have {X} in its mana cost, or by paying enough mana where X=1 otherwise, causing the creature to enter the battlefield with a +1/+1 counter on it.
  2. Activate Ashnod's Altar by sacrificing the creature, adding {C}{C}.
  3. When the creature dies, Reyhan triggers, putting a +1/+1 counter on Evolution Witness.
  4. Evolution Witness triggers, returning the creature from your graveyard to your hand.
  5. Repeat.
  6. If the creature can be cast for {C} or less, this combo nets infinite colorless mana, and you may cast that creature for an arbitrarily large amount of mana if it has {X} in its mana cost.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Evolution Witness
  - Infinite colorless mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have enough mana to cast the creature with MV<=2 if it doesn't have {X} in its mana cost, or enough to cast it with X=1 otherwise.
[END OF COMBO PREREQUISITES]
assistant