you may play exiled cards mtg that from exile The 51 Best Cast From Exile Cards in Magic Ranked Escape to the Wilds

I also wonder about splashing all the other colors

Now Im not going to keep repeating how +1/+1 counter synergies are everywhere, but what I really like otherwise about the abilities here is that you can trigger them on any turn once, so if you have an engine for life gain going and triggering on every turn with say Properous Innkeeper and Beledros Witherbloom (also in the deck), youll be sitting pretty on you next turn with possibly four 7/7 racoons

Its very easy to exploit its abilities by playing a permanent spell of each type in your graveyard

Witherbloom Pestilence also includes some cards that encourage attacking, which doesnt gel well with the Aristocrats playstyle

Why do I care about being 80% to draw 9 spells by turn 9 (assuming 17 cards seen)