How can you create a combo with Nadier, Agent of the Duskenel, Call of the Wild, Mortuary, Phyrexian Altar?
user
[START OF COMBO]This combo can be formed with Nadier, Agent of the Duskenel, Call of the Wild, Mortuary, Phyrexian Altar

Color identity: BG
Mana cost: 
Steps:
  1. Activate Phyrexian Altar by sacrificing Nadier, adding {G}.
  2. Nadier dies, triggering itself and Mortuary.
  3. Resolve the Nadier trigger, creating at least four 1/1 Elf Warrior creature tokens.
  4. Resolve the Mortuary trigger, putting Nadier on top of your library from your graveyard.
  5. Activate Phyrexian Altar three times by sacrificing three Elf Warrior tokens, adding {2}{G}.
  6. Activate Call of the Wild by paying {2}{G}{G}, revealing Nadier from the top of your library and putting it onto the battlefield.
  7. Activate Phyrexian Altar by sacrificing an Elf Warrior token, adding one mana of any color.
  8. The Elf Warrior dies, triggering Nadier, putting a +1/+1 counter on it.
  9. Repeat.
  10. Once you have infinite mana, you may activate Call of the Wild's ability to put all creature cards from your library onto the battlefield.[END OF COMBO STEPS]

Result:
  - Infinite +1/+1 counters on Nadier
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite self-mill
  - Put all creature cards from your library onto the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Nadier has a power of at least four.
[END OF COMBO PREREQUISITES]
assistant