Taborax, Hope's Demise This 2/2 flying three-drop has lifelink with enough counters on it, and then when your nontoken stuff dies you'll toss one here
Funeral Room // Awakening Hall Funeral Room gives you a Bastion of Remembrance/Zulaport Cutthroat effect, for 3 mana, and thats already interesting
The second reason youd want ramp spells is to cast your big white commanders ahead of time, like Zetalpa, Primal Dawn or Elesh Norn
Enchantment and artifact destruction, life gain, big tokens, reach, and trample are all effects well-established in green's arsenal
That said, you still definitely need to have a few of the payoff type cards to try playing this strategy I can tell you from experience that just playing a bunch of low-cost white and black cards wont have the oomph to finish off most opponents
Black-Red Black Mage Aggro Cast noncreature spells to deal devastating damage to your opponents