Great Train Heist + Spellbinder

R identity

Commander legal

The 2 combo pieces

What must be in place

Creatures you control can tap to produce at least {2}{R}.

How to execute it

  1. Deal combat damage with the creature that has Spellbinder attached, triggering Spellbinder.
  2. Holding priority, activate any number of creatures you control by tapping them, adding at least {2}{R}.
  3. Resolve the Spellbinder trigger, casting a copy of Great Train Heist without paying its mana cost, and choosing to pay an additional {2}{R} to select its first mode, causing you to untap all creatures you control and to get an additional combat phase after this one.
  4. Repeat each combat phase.

What the combo produces