Boreas Charger
From Commander 2021 set
Boreas Charger
Creature — Pegasus
2/1
Flying
When this creature leaves the battlefield, choose an opponent who controls more lands than you. Search your library for a number of Plains cards equal to the difference, reveal those cards, put one of them onto the battlefield tapped and the rest into your hand, then shuffle.
Rulings
- You can find fewer Plains cards than the difference, perhaps because you don't have that many Plains cards left in your library.
- If no opponent controls more lands than you, you'll search your library and shuffle it, but you won't be able to find any Plains cards.