Scaretiller + Cacophodon + Viridian Longbow + Roaring Earth + Obscura Storefront

Prerequisites

• Viridian Longbow attached to Scaretiller.
• Scaretiller does not have summoning sickness.

Steps

1. 1Activate Scaretiller by tapping it, targeting Cacophodon.
2. 2Scaretiller triggers, returning Obscura Storefront from your graveyard to the battlefield tapped.
3. 3Obscura Storefront enters the battlefield, triggering itself and Roaring Earth.
4. 4Resolve the Roaring Earth trigger, putting a +1/+1 counter on Cacophodon.
5. 5Resolve the Obscura Storefront trigger, causing you to sacrifice it and search your library for a basic Plains, Island or Swamp and put it onto the battlefield tapped.
6. 6If you put a land onto the battlefield this way, Roaring Earth triggers, putting a +1/+1 counter on a creature you control.
7. 7Resolve the Scaretiller ability from step 1, dealing 1 damage to Cacophodon.
8. 8Cacophodon triggers, untapping Scaretiller.
9. 9Repeat.

Effects

• Infinite +1/+1 counters on a creature
• Infinite landfall triggers
• Put all basic Islands, Swamps, and Plains from your library onto the battlefield