How can you create a combo with Alena, Kessig Trapper, Singing Bell Strike?
user
[START OF COMBO]This combo can be formed with Alena, Kessig Trapper, Singing Bell Strike

Color identity: UR
Mana cost: 
Steps:
  1. Activate Alena by tapping it, adding at least seven {R}.
  2. Activate Alena by paying {6}, untapping it.
  3. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite red mana[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Singing Bell Strike attached to Alena.
  - Alena is untapped and does not have summoning sickness.
  - You have had a creature with power seven or greater enter the battlefield under your control this turn.
[END OF COMBO PREREQUISITES]
assistant