Darkness:
5i4 5i4 5i4 5i4 5i4 5i4 5i4 5i4 5i8 5i8 5i8 5i8 5i8 5ie 5ie 5ie 5ie 5ie 5jm 5jm 5jm 5jm 5jm 5oi 5ol 5on 5on 5on 5on 5on
This deck had the best overall win rate so far; 5-7 games against all darkness decks, with 60-70%+ win rate. Some more testings may be necessary (Like the OE is still a theory, could be swapped for more pillar/toad/bolt)
Playing this deck needs some precognition, which means:
:timemark This means Ghostmare is coming at you. But don't worry, you have plenty enough of CC to get rid of all 6 Ghost they might bring. Sadly, you cannot counter the nightmares, besides keeping your hand as full as you can. Play your Toads one by one, and only if you'll have enough quanta next round to play them again, and never discard ghosts, only if you must - if you leave them in your hand, the next nightmare won't hurt you as much (and won't heal your opponent in the same time). Count the RTs and Nightmares cast. If they played ~4, their hand is probably almost empty by now, and you have a steady quanta income, play more Toads if you can; when you reach this state, you can easily outdamage him. And never forget, reaching 10 quanta means you can kill a Ghost with a bolt too. Without them, they can't kill you. These games can be very slow and boring..
:earthmark This is tricky, as it can be two sided: Could be a denialbow or a simple grabbow. Play your pillars/pends smart and slowly, you'll know by round 3 which one will it really be. If grabs are showing up, have a deep breath and start the massacre: Bolts, shockwaves, infect can handle them well. Sooner or later you can deal back the damage they caused multiple times without resistance (maybe fog).
If it's a denial, then prepare for a very slow game again *sigh*and start gathering your power. 2 Pillars and one pend is enough to beat this ugly deck, keep the rest in your hand in case of an earthquake. Use bolts for devourers, keep shockwaves for gargoyles or dragons. This deck has many CC, so play your Toads one by one again; they possibly don't have more than 4 (mostly RT and lightning) so if they've emptied their capabilities, play accordingly. As I said, very slow and nerve wrecking games, but you have the upper hand.
:gravitymark Here comes the worst of all. This will be a very tough fight, and you'll need some luck too to be victorious here. Drop all you pillars/tower, you'll need them: gather as much as quanta as you can before the first Dolls pop up. Wait with the toads yet. If you reached 10+, you're starting good. you can wait until acceleration reaches 4-6, but not a single moment after that, getting rid of dolls will alsohurt you as much. Ice bolt+shockwave combo is the key, never infect dolls; if you can't pull out the combo, just try to freeze them with 10+ quanta (preferably 20+). Also, keep in mind, that they'll most likely to have gravity pull too, so count the possible damage that's redirected to you before pressing Done!!! - Use CC if you can get away with some +hp that way.
There could be some possible combinations of the ones above, something like mini sha'kars, but they are most likely to be flawed enough designs to easily overcome. Also, I left out Adrenavamps, which is entirely luck based, as how soon does your opponent play Cloak. If he does not have any cloak, vampires are not a problem of course.
All in all: play, play and play! Get used to it, and try yourself against the type of decks above - and do mods for your liking. JUST WIN THIS GODDAMN MATCH! :]