The Lost Caverns of Ixalan Commander

Sorcery

As an additional cost to cast this spell, reveal a Dinosaur card from your hand or pay {1}.
Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Thunderherd Migration

Dominaria United Promos

Beast

Herd Migration

Domain — Create a 3/3 green Beast creature token for each basic land type among lands you control.
{1}{G}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle. You gain 3 life.