Here are a few suggestions: Aetherworks Marvel, Wheel of Potential, Plasma Caster, HELIOS One, Greenbelt Rampager, Glint-Sleeve Siphoner, Deadlock Trap, Dynavolt Tower, Chthonian Nightmare, Unstable Amulet, Servant of the Conduit, Harnessed Lightning, Gonti's Machinations, Decoction Module, Woodweaver's Puzzleknot, Sage of Shaila's Claim, Die Young, Consulate Turret, and Aether Chaser
Scion of Calamity relaxes that tension by removing permanents while being big and flashyunless you can think of something cooler than three dinosaurs rampaging through a camp
IV Oblivion Each opponent sacrifices a creature of their choice and loses 3 life
It basically serves as a 'second copy' of Delinquent Duo
To curb this growing dominance that Chaos had, Konami instituted the first ever Forbidden List
That means I have one more preview card to show you