What new decks have you had fun with while mastering cards?

I had drifted away from the game for a bit when BFZ came out, but the "color mastery" concept brought me back because there was finally a point to playing with all those fun but not quite good enough cards. Sometimes it was just a painful slog to win with cards that were basically worse versions of the strategy I'd been playing. But there were a few fun discoveries:

- Playing with Dreadwaters led me to a whole new Jace strategy that feels appropriately controlling for blue. Instead of using his first ability to slow opponents down until I could bounce/destroy their stuff, I now use his ultimate almost exclusively - along with Dreadwaters, you can get a fearsome board full of draining gems, and never match them yourself if you can help it. Hopefully you dropped a Harbinger or Reflector to bounce their first creature before getting the lock into play, or if not you use Awakened Scatter to the Winds to drain their cards and get a 6/6 to beat them down. Turn to Frog, Anchor, and Scour take care of anything that gets through, and you grind it out 6 or 10 points at a time. This deck is great, and got way better when I got lucky and pulled an Exert Influence.

- The goblin deck with Zada/Piledriver/pump spells isn't great, but (especially with Embermaw Hellion) the pre-combat step is great fun as everything keeps buffing each other. Sure Strike is great either on Zada (of course) or on a berserking Piledriver. I only wish Zada would work with supports like Call of the Full Moon.

- Don't really have the best cards for the ingest/process deck, but the engine can be pretty effective. Really enjoyed using Liliana so that you can use the ingest from Transgress and Grip of Desolation to fuel big Despoilers and Blight Herders. Dust Stalker feels great when you usually get to keep it, and one little ingest dude like a Sludge Crawler may be worth the slot. Wasteland Strangler is probably the card you really want here (don't have it). Was never able to make use of the Void gems to fuel my Eldrazi - I suspect that's a different mana denial deck that goes all in on the ingesters and doesn't Process.

- The white support deck with Starfield and Sigil is also great fun when it works, but definitely inconsistent when you don't get the right ones or it takes too long to put together. You do need certain key cards - Oath of Gideon, Knightly Valor, basically the supports that affect the board immediately. You can't be all-in on finding a Sigil, paying for it, and hoping your opponent is doing nothing. Can't decide whether the disablers (Bonds, Hixus) are in the best version of the deck or not - against some opponents they're game over, but against red or Sword of the Animist they take up valuable draw steps that you could be using to find cards that help you win. As usual with Gideon I, his first ability plus Mist helps you deal with threats once you have a board presence.

Is there anything cool you discovered?