Devoted Druid + Haldir, Lórien Lieutenant

Mana needed: {5} minus {X}, where X is Devoted Druid's toughness minus one

G identity

Commander legal

The 2 combo pieces

What must be in place

Haldir has at least six +1/+1 counters on it.
Devoted Druid does not have summoning sickness.

How to execute it

  1. Activate Devoted Druid's first ability by tapping it, adding {G}.
  2. If Devoted Druid has toughness 2 or greater, activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
  3. Repeat steps 1 and 2 until Devoted Druid has toughness equal to 1.
  4. Activate Haldir by paying {5}{G}, giving Elves you control +1/+1 until end of turn for each +1/+1 counter on Haldir.
  5. If Devoted Druid is tapped, activate its second ability by putting a -1/-1 counter on it, untapping it.
  6. Repeat.

What the combo produces