When people think about value cards, people tend to lean towards midrange options like Thragtusk and Huntmaster of the Fells. This deck is an experiment to show that though the impact of low cost cards is small, great value can be achieved through exploiting their unique effects.
Blistercoil Weird and Incursion Specialist gets more juice out of the pumps
Judge's Familiar delays the turn 4 verdict or other attempts at removal and the innate evasion gets damage through
Legion Loyalist increases the survivability of hard hitting overloaded weenies and gets some damage across.
Goblin Electromancer is at worst a bear, at best accelerates all your pumps and other support cards coming in from the sideboard
Ash Zealot is a staple aggro card with tons of built in value. It makes them pay for any snapcast shenanigans or other graveyard play that can come your way.
Mizzium Skin protects against spot removal and combos well with Blistercoil Weird for the surprise 2/3 blocker. It could let you survive trades against other aggro decks as well.
Sideboard plans
Rapid Hybridization is a very versatile card capable of turning your measly 1/1 to a 3/3 or reducing the threat of the opponents bomb. Use as necessary.
vs aggro: Cyclonic Rift and Mizzium Mortars can just wreak their board while leaving you untouched. While the land count may seem pretty low for overloading, Battle Hymn and Goblin Electromancer can get you there. Stall with Rapid Hybridization and Izzet Charm. Combat tricks with Mizzium Skin and Dynacharge can help your weenies even out or win trades. Once they're out of steam, get in with whatever creatures you have left or fight back with your own bomb(Thundermaw Hellkite).
vs control: Your sideboard has plenty of tools to help deal with this match up. Reckless Waif
is almost a guaranteed flip in the first couple turns. Side in Rapid Hybridization if you feel your 1/1s aren't strong enough or if they have nasty creatures in the higher mana slots. Cyclonic Rift and Mizzium Mortars can make short work of any planeswalkers you may come across. Syncopate makes them wary about tapping out and Thundermaw Hellkite gives you that late game threat.
vs midrange: