How can you create a combo with Koll, the Forgemaster, Phyrexian Altar, Obsidian Battle-Axe, Grim Initiate?
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[START OF COMBO]This combo can be formed with Koll, the Forgemaster, Phyrexian Altar, Obsidian Battle-Axe, Grim Initiate

Color identity: RW
Mana cost: {R}
Steps:
  1. Cast Grim Initiate by paying {R}.
  2. Grim Initiate enters the battlefield, triggering Obsidian Battle-Axe, attaching it to Grim Initiate.
  3. Activate Phyrexian Altar by sacrificing Grim Initiate, adding {R}.
  4. Grim Initiate dies, triggering itself and Koll.
  5. Resolve Grim Initiate's trigger, amassing 1.
  6. Resolve Koll's trigger, returning Grim Initiate from your graveyard to your hand.
  7. Activate Phyrexian Altar by sacrificing the Zombie Army token, adding one mana of any color.
  8. Repeat.
  9. Once you have infinite mana, you may repeat the loop without sacrificing the Zombie Army token.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinitely large Zombie Army
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Koll, the Forgemaster must be on the battlefield
  - Phyrexian Altar must be on the battlefield
  - Obsidian Battle-Axe must be on the battlefield
  - Grim Initiate must be in your hand
[END OF COMBO PREREQUISITES]
assistant