Omnath & Nissa, defenders of Zendikar (Retired) (EDH / Commander)

Omnath, Locus of the Roil

The deck is more focused towards landfall and the second ability of the commander, because once you reach the 8th land, Omnath becomes an amazing draw engine (and also grows bigger).

How the deck wins:
-Big Omnath (Voltron)
-Alpha Strike with Elemental Army (Zendikar's Roil, Angry Omnath, Titania... they can be hasty with Temur Ascendancy and Maelstrom Wanderer)
-Zombie strike (Field of the Dead) and Plant strike (Avenger of Zendikar) are also possible
-Infect (Inkmoth Nexus, can be lethal with Awakening of Vitu-Ghazi)
-Simic Ascendancy (sometimes happens)

To support the Voltron plan there are some cards to help Big Omnath get through, since it lacks evasion:
-Kessig Wolf Run (Pump + Trample)
-Mina and Denn (Trample)
-Flipped Hadana's Climb, Winged Temple of Orazca (Pump + Flying)
-Retreat to Coralhelm (Tap blockers)
-Temur Charm (use 3rd mode to make those pesky tokens unable to block)

Some deck sinergies:
-Vigor + Blasphemous Act = Lots of counters (Vigor shuffles)
-Zuran Orb + Splendid Reclamation = 2 Life per land + many landfall triggers
-Zuran Orb + Titania = 5/3 elemental per land
-Risen Reef + Zendikar's Roil or Angry Omnath = as long as there is a land on top you get tokens and new Reef triggers (if you can see the top card with Oracle of Mul Daya, you can use an instant speed shuffle to get a new top; or if you have Retreat to Coralhelm, resolve the scry trigger before creating the elemental token)
-Instant speed landfall (Khalni, Crop Rotation, Natural Connection, Harrow, "Fetchlands") = instant landfall triggers, which can be counters for pumping, tokens as surprise blockers, more draws...)
-Simic Ascendancy + Evolution Sage = with Omnath out, one land means 1 counter for Omnath, then 1 for Ascendancy, then resolve proliferate, which means 1 more for Omnath and 1 more for Ascendancy, which means 1 more for Ascendancy (1 land = 2 for Omnath + 3 for Ascendancy), just with 1 land, so if there also is Hardened Scales or Retreat to Kazandu out or you have another creature with any +1/+1 counter... well... it grows quickly and becomes a wincon, I won't do the math xD
-Animated Lands + Zuran Orb + Angry Omnath = Omnath will shoot lots of bolts
-Oboro + Burgeoning = bounce Oboro with Burgeoning trigger on the stack and put Oboro again to get more landfall triggers
-Omnath or Retreat to Kazandu + Fertilid = 1 basic land for every 2 mana (put the counter from trigger back into Fertilid so it can fetch a new land, rinse and repeat)

Thanks for reading, any suggestion is appreciated! :)