ok, this is working much better even against the random MTGO meta... I almost never even cast Tendrils though... almost always end up slotting them out for Tormod's or Create Removal, depending... still needs some work... I'd be happy with a 33% win rate.
Thank you guys for your suggestions!!
Swamp x15 (prolly at least 1 too many)
Strip Mine x1
Wasteland x2
Black Lotus
Mox Jet
Jet Medallion (I know, I know... but against non-super-competitive decks it can be money)
Tormod's Crypt
Banehound x2 (haste and lifegain? please.)
Dark Ritual x4
Duress x4
Vampiric Tutor (basically only for Will)
Cabal Ritual x3 (almost ready to get rid of these)
Chains of Mephistopheles x2 (secret tech! secret PROXY tech... wow $$)
Demonic Tutor (Will he or won't he Will)
Hymn to Tourach x4
Order of the Ebon Hand x2 (Fallen Empires doesn't suck!!!!)
Sinkhole x4 (zapping the sole Volcanic in a Breach deck feels good... and I just love these black-bordered beauties)
Mind Drain x2 (I dunno... it fits the theme...?)
Yawgmoth's will (duh)
Hero's Downfall (I need to replace this main deck... really wanted to include Beta Terror... but... artifacts........)
Hyptnotic Spectre x4
Lilliana of the Dark Realms x2
Tendrils of Agony x1 (I tried with 4... it just wasn't working)
Drain Life x1 (I just love winning on a DL...)
Sideboard
Tormod's Crypt x3
Terror x4 (I've never used them... they need to go)
Order of the Ebon Hand x2
Dark Banishing x2 (these are actually helpful)
Hero's Downfall
Tendrils of Agony x3 (again... never used)
This is MUCH better than the previous build... obviously still some work to do, but thank you guys again!