Halo Fountain, Clever Conjurer, and Incubation Druid

Prerequisites

• Halo Fountain on the battlefield
• Clever Conjurer on the battlefield
• Incubation Druid on the battlefield
• Incubation Druid and Clever Conjurer do not have summoning sickness
• Incubation Druid has at least one +1/+1 counter on it
• You control a land that can produce

Steps

1. Activate Incubation Druid by tapping it, adding
2. Activate Clever Conjurer by tapping it, targeting Halo Fountain
3. Holding priority, activate Halo Fountain by paying , tapping it, and untapping Clever Conjurer and Incubation Druid, causing you to draw a card
4. Resolve the Clever Conjurer ability, untapping Halo Fountain
5. Repeat
6. Once you have drawn your library, you may instead forego activating Incubation Druid's ability to activate Halo Fountain's first ability to create near-infinite 1/1 Citizen creature tokens

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite creature tokens
• Near-infinite ETB
• Near-infinite mana lands you control can produce