How can you create a combo with Errant and Giada, Mortuary, Ashnod's Altar, Brass Gnat?
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[START OF COMBO]This combo can be formed with Errant and Giada, Mortuary, Ashnod's Altar, Brass Gnat

Color identity: WUB
Mana cost: 
Steps:
  1. Activate Ashnod's Altar by sacrificing Brass Gnat, adding {C}{C}.
  2. When Brass Gnat dies, Mortuary triggers, putting Brass Gnat on top of your library from your graveyard.
  3. Cast Brass Gnat from the top of your library by paying {1}.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - 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
[END OF COMBO PREREQUISITES]
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