Beetleback Chief 5 Awful card but actually really quite good in goblins
Zirda requires our commander to have an activated ability (along with every other permanent)
With the prevalence of blockers in Avatar: The Last Airbender , a card like Enter the Avatar State that allows an attacker to get in unblocked becomes more important
You could make this deck work with the Poipole line, the Ekans line, the Alolan Grimer line (with the Promo A-Grimer card), or the Koffing line with a bit of tweaking, as long as youre running Nihilego and you can Poison your opponent
Personally, as a Magic player since the early '90s, working on the set has been such a joy because it combines the best of the early days of Magic with all the learnings and progress Magic has made along the way
But it can also be overwhelming, especially if youre new to the format