Is this combination too good for a 2 CMC common?

Anyway, the point of this is to ask if the proposed 2 CMC cycles at common could having flying and some sort of Enlighten, if we're going with Enlighten.

I think Enlighten is good, but my idea for the Flying Bears was to have 2-power flyers at CMC2. At that point, the power level is high enough that it's hard to justify having any very good ability, and I was assuming the flying bears would be French vanilla.

I think this card is fine as it is. But most of the cycle shouldn't be CMC2. The power level here may be a bit high: this is basically Agent of Masks, who was startlingly expensive for what she did. This might be better on a 3 or 4 CMC card.

Probably true. I was comparing it in my head to Suture Priest, but your example is a better comparison.

Agent of Masks is spectacular in multiplayer... even in star she roughly says "At the beginning of your upkeep gain 4 life, and deal 1 to each player". She just stinks in 1 v. 1 matchups. The ability here is clearly a 1 on 1 basis, so not as bad.

Although, this does show off a direct comparison to the way Enlighten works now to how combo decks work in general. Had this card been around during the Urza Block, it would have gone directly into the Yawgmoth's Bargain deck. Auto-win. Obviously Bargain is broken. I only bring it up because Enlighten threatens to break open a number of 'not-quite-there" combo cards. In the same way the Storm mechanic sounds fun at first, but devolves into turn 3 wins...

I like this mechanic, but I'm afraid of what it could turn into.

This is an amusing parallel to Oloro, Ageless Ascetic's ability. And a stonkingly awesome combo with him.

Wow, that's quite true.