How can you create a combo with Dream Halls, Sandstorm Eidolon, Sparkcaster?
user
[START OF COMBO]This combo can be formed with Dream Halls, Sandstorm Eidolon, Sparkcaster

Color identity: GUR
Mana cost: 
Steps:
  1. Cast Sparkcaster by discarding Sandstorm Eidolon.
  2. Sandstorm Eidolon triggers from your graveyard, returning from your graveyard to your hand.
  3. Sparkcaster enters the battlefield, triggering twice.
  4. Resolve the first Sparkcaster trigger, dealing 1 damage to target player or planeswalker.
  5. Resolve the second Sparkcaster trigger, returning Sparkcaster from the battlefield to your hand.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite self-discard triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Dream Halls must be on the battlefield
  - Sandstorm Eidolon must be in your hand
  - Sparkcaster must be in your hand
[END OF COMBO PREREQUISITES]
assistant