­Forest + Human Disarmer

Um. So has first strike against morphs casting cost. Because, uh; wow that's a strange mechanic. Does lots of odd stuff in a very small space.

And then turn it green. Because why not.

So something with morphs, disarming, cost, first strike...

I want to say 'ambush'. Ambush seems not to really have mechanical identity. Cards with it tend to have first strike, flash, haste - anything with 'goes fast' in it.

And all morphs are either an ambush or an attempt to sneak past, or a bluff.

So sure. Creatures can be ambush predators; that's a thing; so it can be a mechanic that green has (maybe shared with other colours, most likely).

I think the obvious thing to do is "when this is revealed, UEOT". That captures a LOT of space though.

So maybe we stick with something to do with CMC?

Eh; this isn't a very exciting version of such a critter.

Without even going to the mechanics, why would you ever want to cast this as a 1/1 vanilla for ? Why doesn't it cost when cast that way? 1/1s for are hardly playable nowadays anyway.

As a Spider, I would expect it to have more toughness than power and also to have reach. That's rather inconsistent.

I wanted to do this as the simplest expression of the mechanic.
I agree, you'll basically never flat-cast it. You cast it as a 2/2 morph, flip it to make it a 3/3 UEOT then it drops back to being a 1/1.