Wasn't sure what to do here. My first thought was to make a super Sea Troll, but I couldn't think of anything that excited me. For a while, I almost went with putting Kakra dodging spells by jumping on top of your library, then Polymorphing the top card of your library at end of turn. You could either shenanigains, or just get just use her ability to flicker Kakra. I guess that's what got me on the "How about if she just cast Memory Lapse" track.

Originally, the activation to return Kakra to the owner's library was . But it occurred to me that that's probably too cheap for a decent buyback spell. You probably wouldn't want to pay and discard a card to Memory Lapse each turn, but if it stops an opponent from casting Wrath of God indefinitely, then it's probably worth it. I don't know. Maybe it's fine. I guess it would need to be played with/around.

Originally, Kakra cast Memory Lapse (she cost more) and has an ability that let you put her on top of your library. So you could stop a spell forever, but you weren't drawing cards anymore. Cute. I'm sure it would have played horrible, though.

So I went back to the source and tried to give Kakra something that benefits Sea Troll. Giving an Island to your opponent does that, so I went with land exchange. Makes more sense to me.

Also, the old flavor text was "S'whatcha get when the words're bigger'n yer mouth." Didn't make sense now, and there's enough words on this card as it is.

Oh, also I tried to go more haggish, but the Internet just wouldn't provide. Kakra isn't a mean old woman, she's a fun old woman, but I guess we don't make too many monsters out of fun old women. Ah well.

Huh. A bigger Vedalken Plotter.

I fear the most relevant part of this will be that she's a 3/4 flash for 4. Just jumping into the way of a random 3/3 as a surprise. But the Plotter ability is nicely appropriate to Sea Troll, I agree.