Omen Machine is a powerful card to make all planeswalkers feel powerful. This deck is to try to get the most out of it before anyone else has the chance to abuse it. And on a budget. I tried to find and use cards that are less than $1

Find the Omen Machine

Treasure Mage: A Fabricate on a virtual vanilla creature.

Crystal Ball: Let's you see what's coming and once the Omen Machine is on the field it can help you stack the deck to play free weapons.

Cast the Omen Machine and Other Big Spells

Renowned Weaponsmith: The poor guy is about to cycle out of standard in the next few months, but he is very good and arguably a little better than Vedalken Engineer for having two abilities and beefier toughness.

Cultivator Drone : it adds one less mana than the Vedalken Engineer, but it can contribute to artifacts and colorless creature spells that are in this deck.

Etherium Sculptor: A good choice to bring down the cost.

Mind Stone: Mana and draw power.

Weapons