Funny deck Essence ... need to try that some time.
For fun, if I actually have time for that, I usually craft off decks that funk around some
not so efficient mechanic and play them in PvP2 and against T50.
They are mostly heavy Stall or Charge-decks, take forever to develop and often don't even work all that good.
E.g.:
Dragon-Galeria -> Do nothing for like 12 turns and get comments like "You gonna play something?", then blow up that pesky shield and spam an upped dragon galeria. (Bonus-points for casting at least 10 different dragons within 3 turns, toughest part is to keep the poor guy alive)
Clay-Army -> fractal gemstoners and build quanta while sitting behind a PAed Diamond shield and casting stoneskins, then fractal a steel-golem and relive the golden times of the chinese emperors
Fist of God -> still a secret, has actually developed into a viable Charge-deck with the biggest BOOOM I have ever seen, the road to the deck as it is now has been quite a "just for fun"-thing though
Deja-TU with variations -> always a nice surprise for me and the opponent, hahaha
Water-decks + Xtras -> water critters are among my favourite ones themewise:
load up on squids + some SoGs and play a totally off duo by adding like 8 time-cards, or darkness, or ... ooor give it just one more shot to make a darn poseidon-deck work
I use my voodoo deck.
OTKing with it is massive fun.
Right ... and there is that.