Zendikar, The Living Plane

Defender, Reach
Landfall - Whenever a land enters the battlefield under your control you may put three +1/+1 counters on target land you control. If you do that land becomes a 0/0 Elemental creature.
If the land was a Forest it gains Trample, Swamp it gains Deathtouch, Mountain it gains Haste.
If an effect would cause a land you control to die, instead prevent that damage and remove all counters from that land.