One potential combo is Retraction Helix, Zephyr Scribe, and any zero-cost artifact. Simply keep bouncing and replaying the zero-cost artifact to give your prowess creature whatever power and ...

If the glory years of the Burlington Railroad began in 1934, with the Burlington Zephyr's phenomenal Dawn-to-Dusk run, surely they culminated in 1949, with the arrival of the California Zephyr.