Aetherdrift adds a few one drops to cube, nothing terribly exciting.

Basri, Tomorrow’s Champion is a lion with some decent upside, either cycling or making a few tokens. Skymarcher Aspirant is a fine lion, but cuts need to be made.

I’ve been unimpressed with Three Steps Ahead, it’s mostly just a Cancel as it’s pretty hard to leave extra mana up, so I’m cutting it for Occult Epiphany. Epiphany is an interesting looter that can create a few spirits for pressuring PWs or preserving your life total, so I’m giving it a shot here.

Jadar is another cut due to the cuts of Braids and Smokestack, and I’m adding Blade of the Oni. Blade is good at keeping the pressure on while also being a way to turn two small creatures into one big threat latter as well.

Intimidation Tactics is an interesting discard spell. It doesn’t exile (like Dreams of Steel and Oil) but it can cycle when drawn late, so it’s a decent tradeoff. Bitterblossom has sadly been power crept out of cube, and without Stax synergies, it’s really showing its age.

Greasewrench Goblin is a lion with a decent rummage ability. It’s hard not to like it. Embereth Veteren has been ok, but needing to sac itself pre combat proved to be too much of a downside.

Arena of Glory adds a lot of extra firepower power for some cards, but without needing a big mana investment like Castle Embereth.