Activate Shivan Hellkite by paying {1}{R}, dealing 1 damage to an opponent.
Malcolm triggers, creating two Treasure tokens.
Activate the Treasures by tapping and sacrificing them, adding {1}{R}.
Repeat.

Infinite damage

Malcolm, Keen-Eyed Navigator

Shivan Hellkite

Xorn

Xenograft

Arcane Adaptation

Activate Shivan Hellkite by paying {1}{R}, dealing 1 damage to an opponent.
Malcolm triggers, creating a Treasure token.
Activate the Treasure by tapping and sacrificing it, adding {1}{R}.
Repeat.

Combos with "Shivan Hellkite"