Since Selvala, Heart of the Wilds exists, I wouldnt recommend using this cat shaman as your green commander, but I absolutely think this could go in the 99 of any deck thats running a lot of expensive stompy creatures
The real excitement comes from the Artifact itself
In addition to this, they also give Electric-types a hard time, which is great when you need to shut down some Pikachu decks
Whenever a land enters under your control, if you control seven or more lands, up to one target land you control becomes a 4/4 Elemental creature with haste
Hopefully, the promise of the returning Pokmon-ex mechanic, along with the mysterious possibilities of terastalized Pokmon cards, will be interesting enough that focusing on how it affects live play might distract from this
Gyarados ex's Rampaging Whirlpool deals 140 damage and only costs 3 Water Energy and 1 Colorless Energy