You'll need to have a big creature to start, but after that it's all upside, and with cards like Colossification its a win
Just one of these will set you back $3,000 for even a heavily played copy
Gyre Sage, Fertilid, Prismatic Geoscope, Chromatic Lantern, Realm Seekers, Kodama's Reach, Cultivate, Rampant Growth, Farseek, Explosive Vegetation, Solemn Simulacrum Ramp / Mana Fixing
If that Army isn't already a Goblin, it becomes a Goblin in addition to its other types
Some of the better token producers include Automated Assembly Line and Phyrexian Ironworks to create many small tokens
One of the best enchantment commanders in the game, Sythis, Harvest's Hand is absolutely packed to the brim with value for a 2-mana commander