More delve love...or it mill?
Laboratory maniac says yes. Everything in a graveyard is love for one reason or another. (I think folk'll generally be filling their own yards more than their opponents, though it's certainly possible to mill out, say, a Jund opponent if you drafted a self-mill deck and failed to draft Lab Man.)
There. Now there's at least one viable archetype. . . can we make a storm deck possible too?
I'm against it but I'm not actually in charge.
I'm just the custodian! There's certainly the
beginnings of a U/R "spells matter" deck in this cube, but it remains to be seen whether those cards go more strongly down the prowess / guttersnipe path, Storm, or even build around that one "whenever you flashback a spell, zap your opponent for 2 damage" enchantment.
Edit: I will say this, all the discard/selfmill means that there's room for an almost infinite amount of Flashback stuff. I wish
Scavenge cards were a little more pushed, it's basically a weak Flashback, but the mana price on most of those scavenge effects makes it more of a "late game mana dump" than something you'll be using often or soon. We gots plenty of creature recursion though so scavenge won't be all that badly missed. Lots of cmc=2 and cmc=3 stuff will be returning to the battlefield - even if they never were on the battlefield in the first place!