Necrotic Ooze, Wizard Class, Devoted Druid, and Thought Courier

Prerequisites

• Necrotic Ooze on the battlefield
• Wizard Class on the battlefield
• Devoted Druid in the graveyard
• Thought Courier in the graveyard
• Wizard Class is level three
• Necrotic Ooze does not have summoning sickness

Steps

1. Activate Necrotic Ooze using Thought Courier's ability by tapping it, causing you to loot
2. Wizard Class triggers, putting a +1/+1 counter on Necrotic Ooze
3. Activate Necrotic Ooze using Devoted Druid's second ability by putting a -1/-1 counter on it, untapping it
4. Repeat

Results

• Infinite draw triggers
• Infinite looting
• Infinite self-discard triggers