Nowadays every archetype has a billion support cards so you can build a 100% on-theme deck: if you build Goblins then every creature in your deck can easily be a Goblin, your commander will obviously buff Goblins, and even the noncreature cards will be referencing Goblins
One notable thing here this card prefigured keyword counters, which we see pretty often these days
The alternative Commander, Marneus Calgar, is where its at
Adventures in the Forgotten Realms even had one just last year with Split the Party having a "Don't" flavor text
A Reckoning Approaches Like Perhaps You've Met My Cohort, A Reckoning Approaches allows you to cheat an incredibly expensive and impactful creature into play, but it can fail
Swapping those two out for maybe an Extraplanar Lens and Exsanguinate or Rise of the Dark Realms would be an easy way to keep the deck interesting but move towards a build that only includes Elves