According to the rule book for Domination, on pg 4, in the multiplayer rules it states "...you may pass if one or more of your opponents has more active creatures than you, you may pass. If none of the other players have more active creatures than you, you cannot pass."

So basically I'd say it works pretty similarly to a regular 2 player game, though it sounds like both you and one of your opponents had less creatures than your friend's horde of Bitterwood Foxes. In that case, you both should have been able to pass until they had the same amount of active creatures as you.

Thanks for the feedback, y'all! Definitely got my brain working a little more on the subject.

With the tree, she has 34 life and channels 10, and more-or-less has Regenerate 2 (actually better, since it works both ways, can be combined with other Regenerate from Barkskin or Regrowth Belt or Mohktari or whatever, and gets around Finite Life). Without her tree, she's down to 30 life / 9 channeling / no inherent Regenerate... so a lot of incentive to protect her tree!

Absolutely a lot of incentive! As far as the Finite Life thing goes, I did get really thrown off the other day when I was playing against the Necromancer. I was trying to deal with Deathlock and trying to keep myself alive while also not transferring too much damage to my tree. Thinking back on it, I did leave myself completely open to the situation. I got too used to just being able to send damage to my tree that would get healed immediately and wasn't thinking enough about armor, etc. At least I learned from my loss and will be prepared next time!

I was having a discussion with my partner about the different mages and we realized that the Druid seems to be pretty much the only mage that doesn't get their marker (Treebond) back to put on another spell. The only other thing I can seem to find comparable is the runes for the Anvil Throne Warlord, even then I think that those runes seem to be harder to get rid of than the Druid's tree.

I can definitely think of some reasons why she wouldn't get her marker back, mainly that perhaps I'm incorrect and the Druid's tree is about as difficult to get rid of as the runes (I could see that, as I always put my tree in the corner of the board and then attempt to keep my opponent in the middle or other side of the board with vines, etc.)

Basically: I'm just wanting to hear what other people here think about this!