The idea for this deck is to abuse Treasure Hunt and Seismic Assault. In order to "go off" with Treasure Hunt cast Selective Memory and remove all but 4 or 5 Nonland cards(THIS IS IMPORTANT) so you don't deck yourself off Treasure Hunt. Ideally you want to hit more lands than they have life to combo kill.
Lightning Storm serves as an ult win condition but shouldn't be relied upon.
Life from the Loam serves as additional card draw since you'll primarily want to be drawing lands and turns your fetches into extra damage.
Drift of Phantasms allows you to tutor for either Seismic Assault of Lightning Storm.