Use your Enchantress effects to draw cards while fast mana auras and Early Harvest keep the chain going. Gaea's Touch allows you to play extra lands every time it hits the field, so bringing it back with Rofellos's Gift means you can make use of extra forests you happen to draw during your combo. Eventually, you gather enough storm to cast a Tendrils of Agony using mana from Abundant Growth, Fertile Ground, or Utopia Sprawl.