Speaking of mill, been dicking around with self-mill again. Took a break from the esper-mill since I wanted to toy around with different stuff but I've still got mill on the brain 'cause that's how I roll. Got a semi-tolerable mono blue (Technically dimir since I slipped in a few dual lands just so I had the option to use the second choice on Discovery/Dispersal) deck. Semi-tolerable because esper-mill is still far more reliable since controlled milling outperforms race milling, but what the hell.
Bond of Insight is good for it though expensive. The 4 card mill for 4cmc is kinda weak, but being able to pick up a couple instant/sorcery speed cards to help protect/mill your ass does provide some gas.
Enhanced Surveillance is also surprisingly good because you can run the aforementioned Discovery/Dispersal and the shitty-at-first-glance
Dazzling Lights which fits the deck well as an anti-bolt for 1cmc and mill 2 (Or 4 with enhanced surveillance, or 6 with drowned secrets, etc etc etc). And of course running Ashiok (Self mill for 4 each loyalty counter, and his graveyard exile triggers on opponents, not you) and the new Jace. Usually a good idea to mill like a madman until there's only 1 or 2 Jaces left in your deck, then take it carefully until you have Jace in hand just so you don't fuck yourself. As usual it's really fucking hard to live against pressure (Slimebind helps a bit, and bounce to hand spells, and of course walls of lost thoughts) so there's probably a much better way to self mill in a more controlled way (Maybe going azorious to open yourself up to some good toys) rather than racing, but eh. Felt like playing some dumb shit.
In fact I probably should try playing some actually decent shit. Gruul might be tempting just 'cause I've got a fair number of good cards for 'em anyway, and the 3 mana Domri seems like he might be a better option than the 4 mana Domri anyway. Dies easier, but gives you mana at an arguably more important point (Could give you a second red to drop a phoenix on 4 if you're colorscrewed) and his passive is relevant. Doesn't give you the card advantage of 5 mana Domri but still could give some card advantage with his downtick anyway. Krenko arguably fits gruul well too, since he's a bomb that can go crazy if left unchecked (Much like warboss) and you could even collision/colossus him before attacking for a fuckton of gobbo tokens if you feel like putting your nuts on the table and betting against your opponent having a sweeper.
Speaking of Krenko, might try playing around with him in a goblin token deck similar to that cavalcade of calamity one. Use skirks to sac gobbo tokens for mana to banefire for a ton, or quickly get out a Jaya that makes each of those goblins (And each of those cavalcade of calamity pings) do 1 more point each. Jaya's technically not a goblin but maybe she's got a goblin fetish, I dunno. Honestly I don't think those cards would really improve the deck, they'd just satisfy perverse Timmy urges and I'm just rambling about cards anyway.
