Roiling Vortex One of those cards that screams Sideboard Me! really loudly, Roiling Vortex shows up in those boards for red aggressive decks across formats, most recently in Rakdos Breach decks in Timeless
19 Voracious Vermin Voracious Vermin is a bit expensive at three mana for just a 2/1, but it also creates an additional 1/1 black rat creature token
On its own, Pumpkin Bombs seems like a fun Commander option in themed decks
Green just has so many ways to find the creatures its looking for, so Worldly Tutors just a touch less important than the other two
Mountaincycling ( , Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.) Creature - Elephant Color tag templates(None) Troll of Khazad-dm This creature can't be blocked except by three or more creatures
That same EDH deck will cost you like $75 and the same cube like $300 if you get it on MTGProxy