Haldir, Lórien Lieutenant + Devoted Druid
Produces: Infinite green mana, Infinite power and toughness for certain creatures until end of turn


- Color identity
- G
- Mana
- {5} minus {X}, where X is Devoted Druid's toughness minus one
Prerequisites
Haldir has at least six +1/+1 counters on it. Devoted Druid does not have summoning sickness.
Steps
- Activate Devoted Druid's first ability by tapping it, adding {G}.
- If Devoted Druid has toughness 2 or greater, activate Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it.
- Repeat steps 1 and 2 until Devoted Druid has toughness equal to 1.
- Activate Haldir by paying {5}{G}, giving Elves you control +1/+1 until end of turn for each +1/+1 counter on Haldir.
- If Devoted Druid is tapped, activate its second ability by putting a -1/-1 counter on it, untapping it.
- Repeat.
How to execute this combo
The "Haldir, Lórien Lieutenant + Devoted Druid" combo takes 6 steps in order. Make sure you have the mana open and permanents listed in the prerequisites before you start — opponents can respond between steps.
The end result: Infinite green mana, Infinite power and toughness for certain creatures until end of turn.
Practice the line offline: lay out the cards, walk through each step, and note where you can lose the combo (summoning sickness, lack of priority, removal on a key permanent). In game, announce each step clearly; in casual play you can offer to shortcut after demonstrating the loop.
The best window is a turn when opponents are tapped out or after they commit a spell — hold protection (a counter, Vexing Shusher) if the combo wins on the spot.