5x5 Embark with everything + Elves at WAR.
All civs, Flux, Aquifer, River (Brook "Frogwisp"), Underground River, Underground Pool, Magma Pool, Magma Pipe (Exposed Volcano "The Slow Volcano"), Chasm (Exposed with a waterfall midway down... wtf? Screenshot below), Bottomless Pit (Exposed), HFS, Sand, Trees (Few), Sedimentary Stone (Shale), Economic Stone (Marble, Lignite), Bauxite, 83 z-levels to play with, Elves at WAR (With civ "The Rosy Hatchet" - a fitting name ).