Constructs generally want other constructs so here are some solid ways to construct constructs, with both commanders and non-commanders: Urza, Chief Artificer, Mishra, Eminent One, Vihaan, Goldwaker, Dollhouse of Horrors, Digsite Engineer, and Simulacrum Synthesizer
Reveal the first card you draw on each of your turns
Honorable Mention Hashaton, Scarab's Fist Let's start with this two-drop blocking 1/3 size guy for Orzhov mana, and then when you discard that dork you can spend three mana one of which is Blue to make a tapped token copy of it at 4/4 size and a Zombie too
This has about as much kill potential in cube as a Gut Shot and isn't getting a look in as a result
Bant not your preferred EDH color trio
Im not sure what I want to do in regards to collecting this set