You control at least three Dragons and/or Illusions.
({4} magic symbol) ({R} magic symbol) available.
Steps
Cast Searing Touch with buyback by paying ({4} magic symbol) ({R} magic symbol) .
Birgi and Manaform Hellkite trigger.
Resolve the Birgi trigger, adding ({R} magic symbol) .
Resolve the Manaform Hellkite trigger, creating a 5/5 Dragon Illusion creature token with haste.
The Dragon Illusion enters the battlefield, triggering Mana Echoes, adding at least ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) .
Resolve Searing Touch, dealing 1 damage to any target and returning Searing Touch to your hand.