On any future turn, you may cast that card from exile without paying its mana cost during your main phase while the stack is empty.
The only catch is that you've got to have the extra mana to recast the adventure portion the turn the creature portion dies
So yes, Etali, Primal Conqueror is an extremely good pay off in the command zone for decks that win with Food Chain, if you can keep casting a creature such as Squee, the Immortal from exile to generate 10 million mana or something
It seems like an interesting way to combat decks full of trinkety artifacts, which only seem to be getting more and more popular, though the specific interaction against Smothering Tithe is pretty hilarious
Despite Kogla's enthusiastic and vigorous maneuvers, it's not clear if Yidaro knows that he's being functionally employed as a Phyrexian perforator
You can also find regular and extended-art treatments for cards, like Moonshaker Cavalry, which will have a special traditional foil textless full-art promo available at a later date, all shown below