On the supporter side, we are gaining both Lillies Determination, a great draw supporter, and Wallys Compassion, a supporter that fully heals your Mega Pokmon
At the current meta, AFAIK you are better off with fast disruption like hand traps, Called by the Grave, Infinite Impermanence
The 42" size fits gaming desks better than the 48", which admittedly is still a bit too large, especially since most of us sit only a few feet away from our monitors
So, in what aspects does Ethnos disappoint
Shadow Rider Tania Amazoness cards actually have competitive history in Speed Duel: Mai Valentines Tribal Synergy skill was an early hit back in 2019 when the first Speed Duel Starter Decks dropped, and Amazoness Swords Woman has seen play in winning Decks
This makes him one of the best token commanders in MTG for players who want to win by overwhelming their opponents with a huge swarm