Grass starter..?

I really have no idea for the grass starter. Basing on the other two:

-Toofin is on two legs, Ottorch on four
-Jarqualo has steel as the second type, Propyre has no second type
-Toofin is a fish (amphibious/reptile), Ottorch is a mammal
-Jarqualo attacks using its metal fins and teeth (high attack and speed), Propyre uses its tail as an engine and attacks using fire (high sp. attack and defence).

So the grass starter should have these characteristics:

-Two/Four legs (or both)
-The final stage should not have steel as a second type
-Shouldn't be a fish, reptile, amphibious or mammal (maybe another type of mammal, but not too similar to an otter)
-Should have both high attack and sp.attack

Any suggestions?