Zuran Orb followed by Armageddon is a backbreaking swing in the game
You gather lore with your characters, who each have a Lore value
Its a big angel that you fight and defend yourself with, and with this 4-color commander you can easily mix in blink effects to draw a bunch of cards
Mutate encourages you to engage with this risk by having when-this-Mutates effects on all Mutate creatures, giving you reason to Mutate the same creature multiple times
His ability, Intimidating and Awe-Inspiring, grants a Resist bonus to any of your characters when they initiate a challenge, reducing incoming damage by two during that exchange
As long as the mana value doesn't exceed the damage dealt, you can snowball into extra threats, lands, or other permanents to quickly run away with the game