Turntimber Sower

Whenever one or more land cards are put into your graveyard from anywhere, create a 0/1 green Plant creature token.
{G}, Sacrifice three creatures: Return target land card from your graveyard to your hand.

Outlaws of Thunder Junction Commander

Treasure Chest

Commander 2018

If multiple land cards are put into your graveyard at once, Turntimber Sower's first ability triggers only once. This could happen because an effect put them there from your library at once, or because they were destroyed at the same time (such as two land creatures that were dealt lethal combat damage), for example.