Landfall

Permanents carrying the Landfall ability word, which fires an ability each time a land enters the battlefield under your control. The payoffs range widely: Lotus Cobra adds mana, Scute Swarm copies itself, Avenger of Zendikar grows its Plant army, and Tireless Provisioner spits out Food or Treasure. Distinct from Extra Land Drop, which simply lets you play more lands per turn without any entering trigger, and from Land Ramp, which puts the lands onto the battlefield in the first place; Landfall cards are the payoff that rewards those lands arriving. Note these reward lands entering under YOUR control, not an opponent's.