­Primal Forcemage all over again?

I have no idea what havoc the Forcemage wrecked at the time, but I think a better comparison is a Wild Nacatl that a) shrinks back at end of turn and b) must be played undercurve. I don't think it's that different from, say, a Carapace Forger or a Boreal Centaur (both of which are more reliable because the increases can be repeated/are constant).

I think SM is saying that the boost from this, like the boost from the Forcemage, is normally useless. (I have a monogreen deck in which the Forcemage isn't useless, but mainly because it's green haste and suspend, which curiously turns out to be a lot of green flying. In most cases that aren't built around it, though, the Forcemage does feel quite silly.)

Oh, right. Sorry. For some reason I have an annoying tendency to forget about summoning sickness. Do you think adding Haste is too much (though I'm fine moving it to uncommon), or maybe "until your next turn"?

I think it should stay as is, actually. It fulfills good roles in a design.

I'm sure it'll find some use (and a bear is never 100% useless), but I do wish it was more clear... or at least I knew what that use was. I definitely need to make a rare 1/1 version that ETB with counters, though.

It's not going to fulfill a very good role at all unless you have other cards in the set that it can interact with (like Forcemage did). Otherwise you're just wasting rules text and complexity.

Well, tehre's always Combined Assault, but it can only go so far...

Flash. Don't forget flash, which is #1 in green. That said, Circeus, I'd highly suggest a common green card that gave the next creature you play flash, or a sac creature, or something (preferably, something that didn't cost much mana, since fertility wants untapped land). It doesn't take much to give this creature relevance.