is it possible you have too many lands? consider your converted mana cost average and use of the vial. you may not need that many lands and could replace 2 of them with more useful things. other wise, it looks potent

davebot i'd be nervous dipping under 22 just for Collected Company, without any draw power, we really need to be able to cast it at the right time. but thanks for the feedback!

davebot another idea i had would be to add Sentinel Sliver and Manaweft Sliver. we could then cut back the lands with these added but i'm not sure if it could remain consistent

Sideboard? I'd definitely recommend Syphon Sliver there.

kameenook id be worried about splashing another color for consistency sake, plus if i build it in paper the mana base will be budget

Well it's not budget, but I'm concerned about the lack of Cavern of Souls, cavern makes 5 color decks or decks like this get free splashes. A more budget friendly version is Ancient Ziggurat, or if you pilot it into an aggro-light metagame, City of Brass + Mana Confluence are fine options.

Almost forgot about Sliver Hive, shouldn't cost a lot and has SLIVER in the name.

kameenook fair enough, (when i built the list i was in a rush to get to class so i just copied another bant list's and tweeked it a little) when i get home tonight i plan to sit down and create a mana base for this list. i just wanted to get my idea out there

Always run Manaweft Sliver. Always. Sooo helpful. Cool deck!

Always run Manaweft Sliver. Always. Sooo helpful for mana fixing, and will get you lower lands. Cool deck!

Froghog90 thanks! and yea i considered it, i'm just not sure how to make room for it, because to use it in aggro i'd also need Sentinel Sliver, but i could pull lands out. i just don't want to hurt my consistency

I second the call for Manaweft Sliver, it's very potent in a Collected Company type of deck. I like the idea of Mirror Entity as a mana dump that's turning your Slivers into big beaters, but I don't like that you are basically a "big dumb aggro deck" that has a whole lot of pump, but no interaction. Path to Exile and Diffusion Sliver aren't enough disruption to slow down decks faster than you, and Phantasmal Image is woeful against any deck with targeted spells (most of them).

rothgar13 so what would you suggest lowering creature count and go more aggressive tempo? I'm open for anything, I want to make this viable

I'd suggest swapping Image for Manaweft Sliver. This frees you up to spend a couple of spots that would otherwise go to lands on spells. You could look at some counterspells like Spell Pierce to give you stuff to do against combo decks.

rothgar13 ok i'll play around with it and see what I come up with, because your right, as long as the other deck doesn't mess with us it's game.. but that's simply not going to happen, the build needs to be more versatile

kameenook ok i've reworked the mana base any thoughts? rothgar13, Froghog90 and i added Manaweft Sliver, but i decided to keep Phantasmal Image as two of, just because of how versatile he is, as a lord hes good for aggro, but turn him into Diffusion Sliver and now a bolt cost 4 to cast, i'm thinking abt running 2 more image in the side, and another diffusion just to combat burn

Image's a very meta-dependent card, to be honest with you. Against , Splinter Twin, Burn, Grixis Control/Delver/Midrange (any control deck, really), and sometimes Merfolk, he's actively bad and could cost you the game. Against decks with light interaction (like Bogles, Elves, Amulet Bloom, and sometimes Affinity), he is phenomenal and thus a huge boost. I think the negatives outweigh the positives, but if you're in a meta where it won't get picked off by Bolt/Path/Decay/Terminate/Snag, then you're in a good spot. Otherwise... I'd pass. In its stead, I'd point out something like Venom Sliver, which makes for a brutal combat trick (bonus point if you Vial it in!).

509carlisle

The manabase looks a lot better now, but I'm a sucker for theme decks and would run the 4 full Sliver Hives! The only colors this deck needs that Sliver Hive can't produce would be for Phantasmal Image, Spell Pierce, Path to Exile, and Collected Company, especially considering most of these spells will be coming out in the later game, I think it's fair to run the 4th Sliver Hive, but if it screws over casting those spells, feel free to take it out.

kameenook the only reason i didn't add the 4th is because if we play it turn 1, its not gonna benefit us to play another, but so far in play testing its playing pretty great in constancy. rothgar13 since i'm new to modern i really don't know what my meta looks like yet, but Venom Sliver could be a hilarious combat trick and a good alternative

I'd like to second the suggestion for Sliver Hive. It fixes your mana in the early game, and if the game goes long, it's a repeatable source of Slivers.

One other tidbit is that I'd trim Mirror Entity to 2, and boost Manaweft Sliver to 4 - you really, really want to be able to hit a T3 Collected Company, and Mirror Entity is really, really bad in multiples.

AEther Vial is either 4 or 0. You want it turn 1. Any turn past that and its MUCH less useful. I'd drop Mirror Entity to 2 for an additional AEther Vial. Hell, since you're running 4x Adaptive Automaton you really don't even need Mirror Entity anyways. You don't have ramp, with the exception of AEther Vial and Manaweft Sliver. Neither of which will help with Mirror Entity's ability. You have to tap the creatures you would like to attack with for mana to really get any advantage from it and that is counter productive. I'd drop Mirror Entity for an additional Galerider Sliver, Manaweft Sliver, and AEther Vial. That will make your curve for AEther Vial better anyways.

I had a sliver deck that ran Mirror Entity and Manaweft Sliver too, and i think Sentinel Sliver is a good adition to the deck because you can declare attackers and still use your creatures for mana. i usually gave me around 4-6 more mana for mirror

4x Horizon Canopy would also be an excellent investment for games that go a little longer. Being able to trade a land for a draw is very powerful in the mid-late game.

3 Mirror Entity is too many, IMO. Trim that to 2 and bring in the 4th Manaweft Sliver, which is the reason Entity works in your deck in the first place. I'm also not a fan of only having 3 Galerider Sliver, since it's absolutely critical that you draw it in order to get off to a fast start and have the evasion to close games out. Saljen is also correct in that AEther Vial is a 4-or-0 proposition.

rothgar13 Saljen Fo_ryou, i want to think yall for all the input and i've made some changes. i upped AEther Vial to a 4 of, i also added Sentinel Sliver over Diffusion Sliver to go more aggressive thanks to its incredible synergies with Manaweft Sliver and Mirror Entity. but i disagree with dropping mirror to a two of, i use him as a mana dump and normally after he hits i'm swinging for 20+ damage, and manaweft is in there simply to hit Collected Company as early as possible, but the added synergies is almost broken. also Horizon Canopy as a 4 of would be nice but im trying to keep it as budget as possible.

Sedge Sliver, Cavern of Souls, abrupt decay

Add black and red