Here's my super-budget take on GU Infect Aggro - no nice fancy things like Inkmoth Nexus, just pure "make cheap evasive creatures with infect and pump them".

Tons of options on the maybeboard for things that could possibly swap in, or that I saw in similar decks. Telepathy and Peek are listed because the deck I started from had the now-banned Gitaxian Probe.

Aside from the Nexus, a slightly more "deluxe" version could include Botanical Sanctum in place of or in addition to Crumbling Vestige .