Retreat to Coralhelm, Scaled Herbalist, and Guildless Commons

Prerequisites

• Retreat to Coralhelm on the battlefield
• Scaled Herbalist on the battlefield
• Guildless Commons in hand
• Scaled Herbalist does not have summoning sickness

Steps

1. Activate Scaled Herbalist by tapping it, putting Guildless Commons from your hand onto the battlefield
2. Guildless Commons enters the battlefield, triggering itself and Retreat to Coralhelm
3. Resolve the Guildless Commons trigger, returning itself from the battlefield to your hand
4. Resolve the Retreat to Coralhelm trigger, untapping Scaled Herbalist
5. Repeat

Results

• Infinite landfall triggers