Firstly you are rarely up against an artifact heavy deck so the removal side of things doesn't help you
Energy Flux Make no mistake, Energy Flux is about as close as you can get to mono-blue artifact destruction without Smelt costing blue mana

Fill the remaining slots with schemes which actually help you ramp, and your full deck could look something like this: You Exist Only to Amuse You Are Unworthy of Mercy Power Without Equal No Secret Is Hidden from Me Pay Tribute to Me Behold My Grandeur Evil Comes to Fruition My Tendrils Run Deep This World Belongs to Me Realms Befitting My Majesty Decks which aim to storm off as their win con can piggyback off the schemes which cast free spells, as well as some powerful sources of free cards and mana: When Will You Learn No Secret Is Hidden From Me Power Without Equal My Wish Is Your Command I Am Duskmourn Mine Is the Only Truth My Wings Enfold All Because I Have Willed It Plots That Span Centuries My Wealth Will Bury You Another popular effect among schemes is discard, and since they generally hit all opponents the potential yield for commanders like Nath, Tergrid or The Haunt of Hightower is extremely high

This effect, combined with his second ability to draw you a card when you deal combat damage to a player with a creature with a higher power than its base power, Kutzil makes for a solid creature-based commander that gives you some breathing room during your game
It also nullifies your opponent's graveyard - pretty backbreaking for strategies like 'Dredge' that rely on the 'yard - and allows you to grab your opponent's best threat from the void and play it free of charge (Okay, at the cost of its own life, but it's a lowly two-drop, so who cares?) Paired with targeted discard cards like the popular Thoughtseize, Dauthi Voidwalker has the potential to be super scary