Zendikar Rising

Ashaya, Soul of the Wild | Legendary Creature | Elemental | Ashaya, Soul of the Wild's power and toughness are each equal to the number of lands you control. Nontoken creatures you control are Forest lands in addition to their other types. (They're still affected by summoning sickness.) | Chase Stone

Ancient Greenwarden | Creature | Elemental | Reach You may play lands from your graveyard. If a land entering the battlefield causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. | Grzegorz Rutkowski

Turntimber Symbiosis | Sorcery | | Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. If that card has mana value 3 or less, it enters with three additional +1/+1 counters on it. Put the rest on the bottom of your library in a random order. | Randy Vargas

Nissa of Shadowed Boughs | Legendary Planeswalker | Nissa | Landfall — Whenever a land enters the battlefield under your control, put a loyalty counter on Nissa of Shadowed Boughs. +1: Untap target land you control. You may have it become a 3/3 Elemental creature with haste and menace until end of turn. It's still a land. −5: You may put a creature card with mana value less than or equal to the number of lands you control onto the battlefield from your hand or graveyard with two +1/+1 counters on it. | Yongjae Choi

Omnath, Locus of Creation | Legendary Creature | Elemental | When Omnath, Locus of Creation enters the battlefield, draw a card. Landfall — Whenever a land enters the battlefield under your control, you gain 4 life if this is the first time this ability has resolved this turn. If it's the second time, add {R}{G}{W}{U}. If it's the third time, Omnath deals 4 damage to each opponent and each planeswalker you don't control. | Chris Rahn