Arcbound Ravager
In the end, I concluded that 5-6 Channels is probably the optimal number for a 40 card deck
This means youre probably gonna be casting it only a couple of times each game, but the card itself is designed to make each of those plays worthwhile
$0.49 Upriser Renegade (Showcase) Kamigawa: Neon Dynasty Variants $59.99 Jin-Gitaxias, Progress Tyrant (Showcase) Kamigawa: Neon Dynasty Variants $16.99 Sacred Foundry Gatecrash $2.99 Cloudsteel Kirin (Showcase) Kamigawa: Neon Dynasty Variants $0.49 Imperial Subduer (Showcase) Kamigawa: Neon Dynasty Variants $0.49 Asari Captain (Showcase) Kamigawa: Neon Dynasty Variants $0.49 Heiko Yamazaki, the General (Showcase) Kamigawa: Neon Dynasty Variants $5.99 March of Otherworldly Light (Showcase) Kamigawa: Neon Dynasty Variants $9.99 Lizard Blades (Showcase) Kamigawa: Neon Dynasty Variants $10.99 Tamiyo, Compleated Sage (Borderless) Kamigawa: Neon Dynasty Variants $9.99 Path to Exile (226 - Foil) Secret Lair $3.49 Raiyuu, Storm's Edge (Showcase) Kamigawa: Neon Dynasty Variants 0 results found

Board wipes like Austere Command, Cleansing Nova, Damnation, Toxic Deluge, Cyclonic Rift, Rivers Rebuke, Blasphemous Act, Vandalblast, and All is Dust are almost always worth having on hand in some capacity
Even the Magic: The Gathering cards you dont think of can be worth a fair amount