There are three different pack designs with Ariel Sonic Warrior, Sisu, and Ursula Sea Witch Queen on the front
Beanstalk Giant Here's our first attempt at making the Beanstalk Giant (which came about a little later in vision design): Beanstalk (common) 2G Creature Plant Defender 4GG, Sacrifice CARDNAME: Create a 6/6 green Giant
Jenara, Asura of War Jenara, Asura of War is a fine creature, being a 3/3 flier for three mana that can pump itself
Put together, this is a format where you can curve creatures, generate light value, remove a thing that matters, and win
The concept of Learn and Lesson hearkens back a little to the Magic: The Gathering Companion idea from Ikoria , although that mechanic ended up so powerful it needed to be reworked entirely
If you want to learn more about advanced tactics in sideboarding, I recommend checking out this course on Spikes Academy