How can you create a combo with Insidious Roots, Peregrin Took, Cauldron Familiar, Ashnod's Altar?
user
[START OF COMBO]This combo can be formed with Insidious Roots, Peregrin Took, Cauldron Familiar, Ashnod's Altar

Color identity: BG
Mana cost: 
Steps:
  1. Activate Ashnod's Altar by sacrificing Cauldron Familiar, adding {C}{C}.
  2. Activate Cauldron Familiar by sacrificing a Food, returning Cauldron Familiar to the battlefield from your graveyard.
  3. Cauldron Familiar and Insidious Roots trigger.
  4. Resolve the Insidious Roots trigger, creating a 0/1 green Plant creature token and a Food artifact token, and then putting a +1/+1 counter on each Plant you control.
  5. Resolve the Cauldron Familiar trigger, causing each opponent to lose 1 life and you to gain 1 life.
  6. Repeat[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Plants you control
  - Infinite colorless mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite lifeloss
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least one Food.
[END OF COMBO PREREQUISITES]
assistant