Game Over is full of Sorcery cards that involve villains from the series, Grimoire is a mix of Instant and Sorcery abilities from heroes, and all of the Weapons ones involve Artifacts with series heroes wielding them
All while giving you a 2/2 with first strike
Like all formats that tap into most printed Magic cards and rely on a local community for support, you have to begin experiencing things yourself to understand it
If you want to, you can run Optimus Prime, Hero / Optimus Prime, Autobot Leader as your Jeskai commander
Toluz is what happens if you breathe life into a bag of holding, and is the latest in a line of tools that makes discarding cards not only less bad, but actively good
Depending on your roll, you could get anything from 1/1 Squirrel tokens to the ability to activate the ability 2 more times this turn