This one is so effective that people have actually used it in legacy, albeit with Elspeth in place of the Darksteel Forge.
But definitely trollface.
And yeah, that's the gist of it. Works a lot better when you've also got Seedborn Muse out, but yeah.
Kamahl is, in and of himself, a pretty troll-y card. If he sticks around, you're just going to overrun like, three times in a turn with a pile of tokens out.
And if, god forbid, someone tries to play mass-removal to deal with all of your dudes, you just turn all of their lands into dudes also and completely hose them.