Alena, Kessig Trapper + Bog Initiate + Fain, the Broker + Robaran Mercenaries

RWB identity

Commander legal

The 4 combo pieces

What must be in place

Robaran Mercenaries does not have summoning sickness.
You control a creature with power 5 or greater that entered the battlefield this turn.

How to execute it

  1. Activate Robaran Mercenaries using Alena's ability by tapping it, adding at least {R}{R}{R}{R}{R}.
  2. Activate Bog Initiate by paying {1}, adding {B}.
  3. Activate Robaran Mercenaries using Fain's fourth ability by paying {3}{B}, untapping Robaran Mercenaries.
  4. Repeat.

What the combo produces