Shelob, Child of Ungoliant, Devoted Druid, and Setessan Tactics

Prerequisites

• Shelob, Child of Ungoliant on the battlefield
• Devoted Druid on the battlefield
• Setessan Tactics in hand
• Shelob does not have summoning sickness
• available

Steps

1. Cast Setessan Tactics by paying , targeting Shelob
2. Activate Shelob by tapping it, causing it to fight Devoted Druid
3. Devoted Druid dies as a state-based action due to Shelob's deathtouch
4. Shelob triggers, creating a token copy of Devoted Druid that is a Food artifact
5. Activate the Devoted Druid token by tapping it, adding
6. Activate the Devoted Druid token by putting a -1/-1 counter on it, untapping it
7. Repeat from step 5

Results

• Infinite green mana