mtg arcades commander deck the Strategist "Arcades Builds a Wall" -

Last turn, Andrew went all in, taking advantage of the mana on the table to cast both Baneful Omen and Seizan, Perverter of Truth

It sure isn't cEDH, but I think it should be stronger than your average precon

Cascade can turn one spell into several, while Flicker and Proliferate are able to multiply the value of cards already in play with very mana-efficient actions

If you want to save a couple more wildcards, dropping Drannith Magistrate is fine (you can replace it with either more Stern Dismissals or more Seasoned Hallowblades)

Jadelight Ranger Jadelight Ranger was another all-star card in its days in Standard, and it's easy to see why