I made another deck, the big difference is it uses time mark, but is pretty small, and doesn't use any supernovas (I'm still not sure if this is good). The idea behind the deck is avoiding bad draws by having a good amount of towers, and a lot of drawing cards. This means you will very often have good drawing ability and good quantum, and by drawing most of the deck fast, you can get whatever card you need pretty quickly. Supernovas with time mark can lead to bad draws, as sometimes it can be a struggle to even get 2 entropy early. But maybe 3-4 supernovas could be good.
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Avoiding bad draws seems hard unless you have a big deck with lots of towers, and lots of defense. With a smaller deck, unless you have lots of towers it seems inevitable you'll get screwed sometimes, although with small decks you get more of key cards like sundials.
However, a small deck with lots of drawing cards is pretty consistent, and somewhat offsets the disadvantage of a larger number of towers. Also, enough time quantum is produced that eternity can be used basically as much as desired (instead of saving up time quantum for the end, to prevent decking). Using eternity every turn can be very powerful at times, like it can basically reduce a God's draw rate to 1, so less phase shields, less miracles, less rain of fires, etc.
I'm not tracking wins but it still does at least 60%+ (it is the same basic setup as most rainbows), this type of deck may not be the best approach but I'm trying it out. GRRRRR tried the deck and put in some more offense (a PU or 2nd druid would probably be most useful), although with the ability to draw the whole deck, with only a small amount of offensive cards, you will still get all of them. It's also nice not getting duplicate creatures which may stay in your hand and take up space (maxing out your hand is a concern), since sometimes you can't, or shouldn't play creatures.
I'd be interested to see anyone else try out small time mark decks with heavy drawing like this. There might be potential for different/better decks. I'm considering a slightly bigger deck (50 or so) that uses 5-6 hourglasses, to make an early one more likely.