Omnath, Locus of the Roil + Abundance + Retreat to Coralhelm + PuPu UFO

Prerequisites

• You have a land card in hand.
• You control at least seven lands.

Steps

1. 1Activate PuPu UFO by tapping it, putting a land card from your hand onto the battlefield.
2. 2When the land enters the battlefield, Retreat to Coralhelm and Omnath's second ability triggers.
3. 3Resolve the Retreat to Coralhelm trigger, untapping PuPu UFO.
4. 4Resolve the Omnath trigger, putting a +1/+1 counter on an Elemental you control, and then causing you to reveal cards from the top of your library until you reveal a land card and put it into your hand due to Abundance.
5. 5Repeat.

Effects

• Near-infinite landfall triggers
• Put all lands from your hand and library onto the battlefield