TheBear

I've seen before a number of Goblins with really weird, situational abilities. Some that I think in the right match up would be insane. Boggart Harbinger can be a way to tutor them, if it becomes a more prevalent idea.

Arms Dealer - Turns all your goblins into a kill spell to stop Splinter Twin Combo, trade with large threats.
Boggart Shenanigans - RIP wraths.
Fodder Launch - Maybe against creature based decks, feels like just a jumbo Searing Blood.
Goblin King - Against Red decks, other then that just another Lord in a way.
Goblin Wardriver - Actually surprised this guy isn't in the main.
Ib Halfheart, Goblin Tactician - Turn all your guys into kamikazi bombs.
Murderous Redcap - Block kill a guy, block again to kill another small guy.
Stingscourger - A bounce spell on a goblin of all things.
Tarfire - With Harbinger, tutorable shock.
Vexing Shusher - RIP counterspells.
Warren Instigator - Another card potentially for the main, let's you vomit out goblins.
Warren Weirding - Tutorable edict effect, and if needed turns 1 goblin into 2.
Zo-Zu the Punisher - Seems pretty good against Control and Scapeshift decks.

In the end I could be HORRIBLY wrong, but if you do go with these "Silver Bullets" kind of Goblins, I would have to recommend using the Harbinger to find them, and maybe even Aether Vial so you can play these guys at instant speed.

Seems pretty solid, but some thoughts.

Since you are playing Black, why not add even more effective removal? Stuff like Dismember and Terminate. I would also just play a full set of Blood Crypt and atleast a basic swamp, to help work with your sideboard Blood Moons.

In the side I don't think you need the full Rakdos Charm, it's good but not a 4x good. Rain of Gore and Everlasting Torment I don't understand why you would need them, I could see them being some sort of disruption, like Thoughtseize, maybe some sort of Silver Bullet Goblins perhaps.

Thraximundar is not a great finisher I find in a control list, Keranos fits the slot much better.

I would turn the Watchers into Blurs and I think you'll be set.

I feel you need 24 lands, max. You are more aggro then anything.

Oh it's very easy to keep in the 60 card range. You make space by cutting the Slivers that don't actually help the deck a ton, or are too expensive to effectively play.

For example, if you have your land base correctly set, you won't even need the Mana Slivers. And the Large costing Slivers, Mana Cost larger then 4 or so, can be cut to make space for others.

Slivers beg to be aggressive, so lowering the curve helps them out.

I've had the thought of a Sliver deck in my mind for a while now, so I do have some thoughts that could make this pretty absurd.

First, I think you want a full 4 of Aether Vial, it'll let you play more Slivers and also do it at instant speed.

When it comes to the Sliver, I have found that instead of making this ultimate voltron of Slivers with hundreds of abilities etc. I think you want to have 4x of the core Slivers, and maybe 1-2 Silver Bullets, which can be tutored out using like Chord Of Calling etc.

I think you would want 4x of all the +1/+1 Slivers, Galerider and since we can't use Crystalline, I think you'll need a full 4x of the Diffusion for protection.

The Silver Bullets Slivers are like Harmonic, Darkheart for Burn and Necrotic to take out problem permanents.

And I don't think you really need Reliquary, the deck wants to kill the other player ASAP, and not hold onto guys for the long game, it could be 1-2 Mana Confluence, And 1x of other basics, probably Forest or Plains depending on what ends up being the dominate color.

Eh sure, this is my current Legacy build, still tinkering around with it.

http://www.mtgvault.com/thebear/decks/legacy-loampox-4/

Seems like a solid start, I have some thoughts though.

I feel like you may be a little light of hard removal, everything you got just burns, which I guess does have a benefit in the end.

Things like Reality Shift, Maybe Aetherspouts as wrath 5-6.

I could also see using 1-2 Jeskai Ascendancy in here just for the value it can give.

Double Cleave should be Temur Battlerage, same cost, with additional effect with Ferocious.

And Become Immense is not very expensive, so it could be a good addition, maybe to supplement its delve use Evolving Wilds/Terramorphic expanse.

And since you lack a ton of Counters, I would run 2 of the Wild Defiance minimum in the main board.

I would also play Satyr Wayfinder over the Mulch, it's another body to trigger Vengevine and still fills your grave.

Then it works in Online pauper, I play more in paper form, so I stand corrected.

First, Brindle Shoat isn't a common, it's an uncommon, so you can't play it in pauper.

For a Manifest deck to work in my mind, I think you need much more creatures, ones with Morph abilities that can be abused greatly due to a cheaper cost from Manifest.

Stuff like Hooded Hydra, Icefeather Aven, Kheru Spellsnatcher.
And then more ways to cause Manifest, so maybe Cloudshift, more Shaman and Elemental, hell maybe even that enchantment, Cloudform I believe it is, makes a 2/2 hexproof flier.

Then I feel like you may want to cut Polukranos and have a full 4 of Reaper, she seems really good in the format of big green guys and removal.

Then I guess that'll do.

I feel Smallpox does help make the Match ups with Boggles and Infect easier, as they like having less lands and one major threat.

So maybe not Mainboard, but it could find a home in the Side.

I play LoamPox in legacy, and before Mono Black Pox, I know my disruption lol.

I just find having access to a card that kills a threat, slows down a player with land destruction, and causes discard ontop of it seems very powerful to me.

But perhaps you are right, 8 Rack is pretty different then a Mono B Pox deck, same kinda concepts, but different sorta end game/long game strategy.

An interesting idea for this deck, Alesha, Who Smiles at Death.

If you add Grey Merchant to this also, whenever she attacks she can bring back Courser, Merchant, Hornet Queen, Wayfinder for more value.

I would cut down on the Raven's Crime a bit to fit in some Smallpox, the card is just insane for Rack decks.