You might be thinking of casting some cheap cantrips like Opt and Consider is the way to take advantage of this, however, there is an even better way
Theyre great if you only need to knock out one more card, as you can switch Raichu in, use Lt
Find your path through the multiverse using only favorite characters and their most iconic spells and artifacts, or create a theme deck with a narrative that makes sense only to you
Biogenic Ooze - Not only does this make a token when if flickers, but it also makes them all bigger over time, and can even make more tokens even if you don't have flicker options
It's also nice to bring to card shows since it comes with a built in light and is very portable
In The Saga of Sagas, Mark Rosewater lays out that planeswalkers would originally enter the battlefield and have an effect, then trigger a new effect on the subsequent turns before going back to the top and starting over