Youll be able to cast it or dash almost immediately, allowing you to build up Treasure and possibly get some good cards from your opponents
Silly zombie dude, you can live in Volrath's apartment, but you don't go around stealing his sliver steak
Gnarled Professor There are enough good lessons to make Gnarled Professor a flexible card in Constructed formats, but the lesson/learn mechanic doesn't really work in Commander
Primal Vigor is strictly worse than Doubling Season because it only doubles +1/+1 counters, but it feels pretty darn close to having a second Doubling Season in your deck, and thats something youre definitely going to want
It kills things it targets, it is easy to cast and it is instant
Venerated Rotpriest fills that gap, handing out poison counters to an opponent whenever a creature you control becomes the target of a spell