They're pretty neat, too
Regardless, this is an excellent option for Commander players who want to get a ton of value out of one card
While its restriction to only collecting low-power creatures can be awkward, you'd typically include Kiki-Jiki, Mirror Breaker alongside Imperial Recruiter, to trigger Recruiter's ability many more times
The Blue clearly makes the populate mechanic better because you have better targets by virtue of Blue having the easiest time turning creatures into tokens, but I submit that Blue makes the rest of the deck better
Many spells in your deck are very, very expensive, and if you want to build a similar version without the more expensive cards, there are some substitutes: Azlask, the Swelling Scourge, Ulalek, Fused Atrocity, and Eye of Ugin are vital inclusions in this deck, and two of these can be acquired with the precons