Of course eldegoss is a support, it has 2 moves in both slots that can provide healing, despite the fact that it's healing honestly sucks and needs to be buffed. Personally, I just dislike Unite's approach to supports. A supporter should have at least 1 move in both slots that can heal/buff the team. Blissey's got soft-boiled, safeguard, and helping hand, which is a perfect example. Eldegoss is slightly worse cus its healing sucks, but still can heal/buff from both slots regardless. Wiggly, Mime, and Hoopa are all on the offensive end, they just don't really fit imo.

Zoroark just behaves more like a Trevenant without armor, but more offense.