I don't imagine you'll be doing this very often, but maybe you're out of Lessons, so you planned to discard, but some things happened in response, and one thing led to another, and now it's time to learn, but you have an empty hand, and this is all very embarrassing, and let's just not speak of it again, okay
Edge of Autumn In a 2020 blog post, MTG head designer Mark Rosewater said a reprint of Edge of Autumn was unlikely "because it's too strong" - which says everything, really
Costing three generic and two white, it gives all of your creatures +1/+1 whenever one enters the battlefield
It digs in with itscross-shaped feet to crawl on ceilings and walls
Mirari's Wake is also great because it isn't just a mana ramp card, it also gives all your creatures a minor buff, making it great for Selesnya token decks
A three mana 1/1 that makes a 3/3 token is already a really good card pretty close to Blade Splicer - but this comes with the additional upside of occasionally spitting out another 3/3