It's with a heavy heart that I cut Wee Dragonauts. What could Wizards do that's worse than print strictly better cards with worse flavor!? After a long think though, this is a small power bump that's not unwelcome to make the 'spells' theme more appealing. My poor little dragon boys can go in the same sad box next to Stormchaser Mage.

I've been fiddling with green's top end a bunch. I'm on the fence about Primeval Titan but I think I have one or two too many big green cards and want to drop one.

Rampant Growth is strong and unnecessary. There's a wealth of 3 mana variants with interesting upsides, and I think that's an appropriate cost where it's really only effective in a dedicated ramp deck, not a reason to play nonsense decks. I'm not sure Scale the Heights is the right choice, but the counter is kind of neat.

Pyroclasm has felt a bit out of place and I've only seen it splashed in green decks. If it's necessary at all, a harder to splash but more much more flexible variant seems great. My only criticism of Cinderclasm is the main mode is a bit buried.

Bubble Snare and Bloodchief's Thirst have played well in limited and are solid flexible removal spells that I think are a good add.

Cruel Celebrant I think will be a good fit. It makes Corpse Knight look more at home. I think I overlooked it because black isn't particularly aggressive, but it plays into a lot of what it's doing.

Heraldic Banner is also something I didn't especially care for initially, but I think some of the 'go wide' cards need a little more support and this does that without a ton of risk of creating board stalls.

Slimefoot, the Stowaway was in my initial design of the cube. I loved playing the card in Dominaria limited, but it way underperformed here. I think the reason is in Dominaria card advantage was a much scarcer resource, making mana sinks more valuable, and there were plenty of other sources of saprolings so they often had an immediate effect on the battlefield. As easy card advantage has been dialed down and a couple saprolings have popped up here and there I think it's worth another try.