Strixhaven: School of mages

Lessons and Learn - Lessons can be treated one of two ways with regards to Learn. The easy way is just like Commander, there is no sideboard or wishboard, so you would not be able to search for a lesson when you learn.  The other way would be to have a shared binder that if you incorporate Learn into your cubelet, everyone has access to the lessons and it is a first come, first serve on the lessons. Lessons listed below are assessed as if they were just normal spells and not specifically tied to the Learn mechanic.

Guiding Voice
Simple way to learn.

Leonin Lightscribe
In a combat centric cubelet, this seems like a great inclusion.

Show of Confidence
Interesting spell if you can get your storm count up.

Study Break
Another nice way to learn while being a neat way to mess with combat.

Curate
Not as powerful as Ponder, but a nice substitute if you are looking for one.

Multiple Choice
Sweet options and powerful if you get to do all of them.

Confront the Past
Two strong options, especially if you have planeswalkers in your cubelet.

Eyetwich
Simple little flying creature that gets you a little value when it dies. Kind of like a delayed Baleful Strix.

Draconic Intervention
A unique board wipe that will clean up problematic creatures by exiling them if they die.

Extus, Oriq Overlord / Awaken the Blood Avatar
Both sides provide two interesting strategies. Both are powerful, but can be contained.

Plargg, Dean of Chaos / Augusta, Dean of Order
Both sides provide two interesting strategies. Both are powerful, but can be contained.

Shaile, Dean of Radiance / Embrose, Dean of Shadow
Having to choose between these two gives some neat flexibility to the game play. Embrose feels strong with a +1/+1 counter strategy.

Deadly Brew
With a shared graveyard, you have access to everything that was sacrificed.

Expressive Iteration
An unique twist on card selection. Because you can "play" the cards, you can make the one you exiled a land if you haven't played a land that turn.

Fracture
A great inclusion if you are light on artifact, enchantment, and/or planeswalker removal

Lorehold Command
Great modes. Lots of flexibility.

Prismari Command
Great modes. Lots of flexibility.

Quandrix Command
Great modes. Lots of flexibility.

Silverquill Command
Great modes. Lots of flexibility.

Tend the Pests
Get some mileage out of your creatures by suddenly making more

Witherbloom Command
You guessed it. Great modes (except the first one). Lots of flexibility.