Other Pests, Bats, Insects, Snakes, and Spiders you control get +1/+1.
When Blex dies, you gain 4 life.
Look at the top five cards of your library. You may put any number of them into your hand and the rest into your graveyard. You lose 3 life for each card you put into your hand this way.
Assemble a wide board of cheap creature types—Pests, Bats, Insects, Snakes, and Spiders—buffed by Blex's anthem, then close with go-wide swings or token payoffs. Search for Blex acts as a flexible card-draw engine that pays life, refueling you in the late game. You snowball board presence early and grind value through tokens and death triggers in midrange BG fashion.
Anthem covers five distinct creature types, giving real tribal flexibility
Modal back side doubles as a powerful card-advantage/dig spell
Cheap commander that comes down early and pressures opponents
Black-green excels at recursion, ramp, and grindy value