mtg cards like viridian longbow Isperia Magic: The Gathering - (Mirrodin) Viridian Longbow — Rulings, Legalities

All to say, I think this strategy will scale up for Commander if it already hasnt started infesting local metagames

While it might be tempting to pick up the Dinosaur legends now in case they spike more as Ixalan nears, I'd hold off

While it remains unclear, theres a chance these promos remain exclusive to this particular Comic Con

As a commander, Isshin is cheap, and its awesome at increasing the advantages given by attacking immediately

most planeswalkers have seen some wild stuff

Yes, a keyword action is technically also a keyword, but it's not possible for a creature to have a keyword action without having some other ability