While Endless Swarm can be a fun Hail-Mary pass in a deck driven by Seshiro the Anointed, Jetmir, Nexus of Revels, or other swarm (Beastmaster Ascension, Collective Blessing) and/or token (Parallel Lives, Annointed Procession, etc.) synergies, everything rides on your army surviving
But there is a lot of skill involved in playing the deck at high levels, and its fragile, linear game plan would relegate it to fringe status in almost any Standard metagame
You can draw lots of extra cards by discarding your lands and then get them directly onto the battlefield the following turn
Edwards second ability incentivizes you to attack with your vehicles, which in turn requires you tap your creatures to crew them
Do you already run a Gaeas Cradle or Nykthos, Shrine to Nyx