I feel like this legendary land almost needs a goblin or merfolk just sitting in the corner shrugging at the viewers
And while there certainly are expensive upgrades you can make to either of these decks, they both feel strong, think-y, aggressive in their own ways, and will provide many, many games of Commander where you should feel fairly even-toed with everyone else at the table
Whatever deck you build around him is just going to be a lot of fun
Pioneer Format: Banned: Jegantha, the Wellspring This ban targets the prevalence of Jegantha in Pioneer, seeking to encourage a wider variety of deck archetypes
2 Oversized, double-sided battleground cards
Let the legend rule kill the token, choose to create treasure, then with Ratadrabik of Urborg, make the token zombie a copy of Atsushi