I'm curious what everyone plays, I don't need deck lists, just names and/or brief descriptions
Myself
Legacy:
Metalworker; standard metalworker deck minus goblin welders (which I need to stop fucking around and buy). Terrible against counter heavy decks, runs circles around anything else.
Stiflenaught; added some eater of days and a bunch of counters, weak against aggro and anything that can make my naughts and eaters irrelevant. Strong against anything slower and other counter decks.
Overseer Affinity; no ravagers, steel overseers instead. Strong against counter and is my most surprisingly powerful deck. Shocking how quickly a bunch of memnites and ornithopters can become serious problems.
Standard:
Mono Green Hexproof; a modified version of a mono green deck I saw pop up in a few tournies. Get a dungrove elder out turn 2, a sword turn 3, slaughter turn 4. Very fast and aggressive, went 7-1 at a tournament a while back and took first beating all the big deck types. Made it even better since then.
Delver; needed one to test against, it's a decent enough deck.
EDH:
Iona; if I can get a gaunlet or caged sun out early, its unbeatable. If I sit around for 9 turns trying to play defense while my opponent slaps me around then it's useless.
Uril; Unfun for opponents, but has trouble with mono black.
Azami; lady of infinite card advantage. Flies under the radar because all it does is drop little guys for the first half of the game, but if I'm not killed quickly, I can guarantee a win once I am drawing 20 cards a turn and searching out whatever I want.
Olivia; very aggressive, requires a lot of effort to kill me off. No big tricks though. Not that they are needed if I'm just stealing everyone elses creatures and generals.
Niv Mizzet; wanted to see what the fuss was about, stupid deck that is no fun for anyone.
Sharuum; I dialed down the combo madness to make it a little more fun for everyone to play but I had to take out too many cards for other decks so it's sitting there broken right now.