I'm still experimenting with what cards work well together, and straying away from mass discard/creature kill as Spectral Rack already focuses on that.
What I ended up with was a mix of card advantage, disruption, Tarmogoyf backed by discard for the early game, with an army from Nath during the end game.
Its too bad I couldn't find any instant speed discard, as most games I eventually discarded the AI till 1 card. Anyways theres a mix of card types here to pump Tarmogoyf as early as possible. Coarse the AI wouldn't do this but a neat trick would be to cast Hymn to Tourach on yourself to discard more card types n feed Tarmogoyf for an early beatdown.
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3 Darksteel Ingot - mana fixer, bonus they can't disenchant this
4 Doom blade - creature kill for larger non black stuff
3 Exercutioner's Capsule - essentially doom blade that adds an artifact to your graveyard
3 Geth's Grimoire - each time they discard, you get to draw a card
4 Hymn to Tourach - discard n sorcery for Tammy goodness
4 Hypnotic Spectre - constantly keeps them at 0 cards if they have no flier available
4 Nath of the Gilt-Leaf - this guy is da bomb, 4/4 for 5 that makes them discard every upkeep n everytime you make them discard with whatever method pumps out 1/1 elf chump blockers, till you amass an army and run all over them.
4 Peppersmoke - tribal n early weenie kill
4 Tarmogoyf - the star of the deck, a 2 mana drop that quickly escalates to a 5/6 fattie beatdown
4 The Rack - hey might as well make them die faster for having an empty hand
3 Weakness - early creature kill and pump tammy
4 Llanowar Wastes - mana fixer
4 Twilight Mire - mana fixer
5 Forest
7 Swamps
Haven't played much late game yet, tho having Geth, Nath, Spectre,Rack and Tarmogoyf out should be pretty scary.
You make them discard on upkeep which acts like a one way howling mine for you, get free weenies for making them toss cards and finally beat them down with 5/6 Tarmogoyfs.