For my setup I've maxed out on temple of enlightenment and temple of deceit while running no fetchlands. I find that between 8 temples and 4 peer through the depths I find the combo rather quickly by scrying away what I don't need. I haven't had color issues either.
Considering the creature heavy nature of this deck, have you considered Geosurge? It's a huge ritual and you can "filter" off the creature only restriction on the mana by using priest of urban and burning tree emissary.
Angel's Grace in the sideboard destroys any once-off combo like Ad-Nauseam, and can serve as an emergency fog. As far as the mainboard goes, I feel like Day of Judgement is the exact opposite of what you want to be casting in this deck, as you're trying to put guys into the field. Dispatch is an excellent replacement for Path to Exile, which is your ideal removal, if you find yourself hitting MetalCraft often enough. Bottle gnomes is kind of an odd creature here. If you are worried about gaining life, you could run Martyr of Sands as you're mono-white. Alternatively, you could mainboard 4 Vault Skirge as a replacement. Ethersworn Canonist is excellent protection against combo / burn, but is on the pricier side. You could run Court Homunculus as another low drop guy as well. Against Burn/Delver which you can expect to see a lot of right now, Circle of Protection: Red does a lot of work and is cheap.
What artifacts merit tapping on turn 3+ in modern? Wurmcoil? If I wanted to tap creatures and artifacts I think I'd rather use a card like gigadrowse. Even though gigadrowse requires heavy blue, replicate can make it basically uncounterable.
It may be straight worse, but it's twice as hilarious. Also, he asked what was a reasonable way to cheat omniscience. I gave him a way to cheat out omniscience, but that doesn't mean there are better ways to abuse the pieces.
Except that every time I play against delver, I have yet to see them flip it reliably. There isn't enough topdeck manipulation for that to be a thing. It's often stuck as a 1/1 for multiple turns.
Just took the advice of Circle of Protection: Red, as a 2-of in the sideboard. If you are constantly able to produce more mana then burn, you will utterly dismantle them, especially with leyline.
I played against a hilarious deck that won with omniscience, and I lost too.
Their whole plan was fetching up protean hulk with summoners pact, using through the breach or footsteps of the goryo to cheat it in to play and have it die, tutor up lost auramancers and vampire hexmage, sac the hexmage, blow up auramancers fetching omniscience, casting enter the infinite, glittering wish for boborgymos, enraged out of the side, then proceed to dump all their lands and kill me.
I think this is the only reasonable way to cheat in omniscience other than unexpected results.
I've been playing ad nauseam combo for quite some time on mtgo now, and burn usually has been a good matchup until recently. Even with angel's grace and phyrexian unlife maindeck, and leylines, spellskites, and drown in sorrows in the side, I'm still having trouble with burn now that they have eidolon. Burn that runs green for destructive revelry is also a nightmare of a matchup, because they can destroy leylines, unlife, and pentad prism.
I can't side in everything because I'll dilute the deck too much and won't be able to combo off in a reasonable time.
I feel like since the pilot of this deck isn't spending any mana at all on the casting of their spells, barring some rarer scenarios, the mana that the player has ought to be used on generating as much card advantage as possible to counteract all the pitches. If there was an easy card recursion engine from the grave for these spells this deck would be awesome to play.
I feel like this might have potential, but oftentimes it seems like you're expending multiple cards to get rid of a single threat by your opponent. And after you pitch two or three cards out of your initial hand, you are out of steam. Yes, it lets you perform some powerful plays super early in the game, but other than that I don't see anything happening, especially without a card advantage engine. Since we're throwing so many cards in the grave, and using fetchlands, why not treasure cruise to help refill your hand after you start to throw out things?
That plus the delve discard and waste not looks sexy in 8rack.
It may be straight worse, but it's twice as hilarious. Also, he asked what was a reasonable way to cheat omniscience. I gave him a way to cheat out omniscience, but that doesn't mean there are better ways to abuse the pieces.
Their whole plan was fetching up protean hulk with summoners pact, using through the breach or footsteps of the goryo to cheat it in to play and have it die, tutor up lost auramancers and vampire hexmage, sac the hexmage, blow up auramancers fetching omniscience, casting enter the infinite, glittering wish for boborgymos, enraged out of the side, then proceed to dump all their lands and kill me.
I think this is the only reasonable way to cheat in omniscience other than unexpected results.
I can't side in everything because I'll dilute the deck too much and won't be able to combo off in a reasonable time.