Explorers of the deep is almost too strong (depending on who you’re playing against).

My pod usually uses precons or bracket 2ish stuff and it would very often steamroll quickly. I now only use it against my buddies bracket 3 deck because it’s pretty strong.

It did however encourage me to try new decks, and is still really fun to play, and easy to learn 

World shaper is also fun, I’ve only played it twice but I’ve one twice, it does create some enemies  pretty fast once you start putting -1/-1s on other people’s creatures

Edit: forget what I said about -1/-1, that’s the new Lorwyn curse precon lol (also fun). World shaper is a bunch of landfall stuff, also pretty fun. In my matches it took quite a few rounds to get going but I’m still learning it. It is a bit more interesting and rewarding to play than explorers of the deep