If we have several level-up creatures on the battlefield, the ability to add two level counters to each for free is often worth five or even 10 mana, which makes Venerated Teacher pretty great
To balance the event we bid on the decks using starting life and cards and Umori just won thanks to having a bunch of life and cards over opponents
Still, you have access to any of the cards Jacob has exiled and get to exile a new one every turn, turning your looting into actual card advantage
I hope this gave you some ideas for your next creation
Dread Return is incredibly powerful, allowing Dredge and other graveyard decks with cards like Narcomoeba and Bloodghast to reanimate something for free
Life Loss, Not Damage Extort deals life loss, which means we get to slip right past protection and damage prevention effects