Arystos, The Founder

Haste
At Your upkeep create a 1/1 Spirit Soldier with
Haste for each Creature cards in your graveyard.
Whenever Arystos, The Founder attacks create a
1/1 Spirit Soldier with Haste tapped and attacking
for each land you controll.
Sacrifice all spirit soldiers at your endstep.
"Their bodies have turned to dust, but their spirits still answer my call"