Inspired by Modal Gambit.

Adjusted mana cost + .

Weird! I do kind of like it better than gambits for the factions I have them in. I might iterate on this a bit.

I actually really like Outwit as the name of the mechanic, itself.

Iterate away! If it gives someone ideas to work into their set, that's a really great outcome. :)

Yeah, this is really cool. I suppose it might make people feel there's no hope for them unless they've memorised all the Mind Games costs in the set... kinda like some people feel when the opponent's attacking them with a morph creature and precisely untapped (say).

How is the modal choice here meant to work? Does the opponent choose the permanent before you choose the mode (so if they pick their own thing you can choose whether this is Words of Wisdom or Boomerang, and if they pick your thing you can choose whether this is Concentrate or a really bad Rescue)? I guess in this case that makes the most sense. The alternative was that I thought you had to choose the mode before the opponent chose the permanent, which would be pretty weird... "I cast a mystery card. I'm choosing Mode #2, from which you can infer it has at least two modes. You get to choose a permanent..." Yeah, that can't be right.

So the opponent's choice is very early in the casting of the spell: it's before choosing modes, so it's also before choosing targets. And it's before paying mana costs. Do you have to tap your mana before casting this? I think you can't be required to. So you announce "I'm casting a Mind Games card. Choose a permanent." and they have to go "Right, so you have untapped, plus a Gilded Goose. So if it's the five-mana green Mind Games card or the two-mana red one then you're committing to sacrificing your Food, but if it's the four-mana blue one or the three-mana green one then you're not..." Timing sounds potentially fiddly, I guess is what I'm saying.

The mechanic does look really fun though.