Duke.Fleed Deckling

Aether Vial and Ancient Ziggurat are both cards you might be interested in. Also, remember that legendary creatures are not good in multiples. So maybe consider cutting some of the copies of Sliver Legion and Sliver Hivelord. Lastly, modern is a very fast format, so maybe also consider lowering the average converted mana cost of your slivers by removing high costed cards like Psionic Sliver and putting in more low cost high impact cards like Sinew Sliver and Predatory Sliver

rather than green, maybe consider red. That way you get more card draw with your heroic triggers via Dragon Mantle and Crimson Wisps

The main thing I would recommend is having more card types for the gyof. You currently only have 3 types in the main board, meaning the goyf will only ever be a 3/4 at most. That isn't a good enough rate. I suggest adding a good number of sorceries as well as some plainswalkers, artifacts, and enchantments if you can.

A really good combo with Elder Deep-Fiend, since it has flash, is cards with evoke like Shriekmaw. Also, even though the emerge mechanic reduces cost, they are often still kind of expensive for modern. So I recommend adding more mana producing creatures like Elvish Mystic

Zulaport Cutthroat

Colonnade is not a very good tempo card. It serves as a “non creature” win condition for heavy control decks

Quick question, from someone who plays many graveyard decks, what do you do about a turn 2 RIP or a turn 1 relic? assuming you dont draw a nature's claim, can this deck function without its graveyard? Have you considered a transformative sideboard that could eliminate much of your reliance on the graveyard? Opponents may not expect a sideboard plan like that.

rather than Augury Adept and Warkite Marauder, since you are running so many faeries, you might consider Vendilion Clique and Spellstutter Sprite.

I wonder if you could cut blue from the deck. It only gives you Jace's Archivist and Shadowstorm Vizier. Though those cards may be good in the deck, you may get more advantage points from cutting down to two colors. You could run cards like Collective Brutality/Faithless Lootingfor more discard and Dark Confidant/Cathartic Reunion to fuel your hand for more discarding.

Modern is such a fast format, lower mana cost is often worth more than raw power. For example, rather than Curator's Ward I would recommend something like Vines of Vastwood. Furthermore, low cost removal is quite common in modern, like Path to Exile, Terminate, and now Assassin's Trophy. Therefore, big mana creatures like Kalonian Hydra are not as effective as a game ender because you have to untap with it. If you are going to spend 3 or more mana on something in modern, it better do something for you asap. You already have infinite combos to win the game, you may not even need to have a game closer like the hydra. Lastly, I think Kalonian Tusker is the most reasonable card here. It is a good sized creature for it's cost. However, this is most effective in a strictly linearly aggressive deck rather than a combo deck like this. So if you are using it for blocking, or stalling the game out, maybe something like Kitchen Finks would defiantly do that.

So in modern there are two approaches to creature decks. There is the very linear, "I have one goal, and that is to kill you," plan. This can be seen in decks like dredge, 8-wack, hollow one, and zoo. The other approach is the disruptive approach, where each of the creatures in the deck serves a purpose to stop the opponent from doing stuff. Good examples of this are: humans, spirits, and hate bears. This deck, being black and white, has access to many of those disruptive cards. Stuff like Thoughtseize and Path to Exile and Fatal Push. So I would recommend you play to the strengths of the colors. Pick the best, most synergistic, 13 vampires or so... then make the rest of your cards interaction. I don't know your budget but here are some more suggestions: Collective Brutality, Zealous Persecution, and Inquisition of Kozilek

I really like the idea. I am curious about some of your card choices though. Curator's Ward, Kalonian Tusker, and Kalonian Hydra are all cards that dont seem to fit the rest of the deck. What was your motivation for putting them in?

with 13 creatures, do you feel that delver is worth it? If you are committed to the burn plan game 1, wouldn't Goblin Guide just be better? or even just more removal like some Vapor Snags or Repeal?

Good point about Sign in Blood. I only worry that, in a budget deck without dual lands, it will be hard to consistently cast with the BB mana cost.

So here is the secret of modern: If you are confident and practiced in your deck, familiar with all the matchups and how to sideboard for them and what they'll sideboard against you. Then you will gain significant advantage points just from that experience. So my answer to you is kind of a cop out, but it is the truth. (based upon evidence from pros like: caleb scherer, Jadine Klomparens, and Becky Adlman who all are one deck wonders). Learn your deck well, always be critical of your deck, understand why you are loosing the matchups you are, and you will understand the correct cards you need to play.

However, this probably wasn't the advice you were looking for. So here is what I'd say about main deck. Run as many ballista as you can and, without Eye of Ugin in the format, promised end is better than aeons torn.

I’m not a huge fan of world breaker, o-stone kind of does its job. I like 4 ballista in the main, it just makes the early game against most decks so smooth and you don’t hate to draw it late. Emrakul is interesting. Personally I like promised end more than aeons torn. It is easier to cast and almost always wins you the game anyways.

why Scryb Ranger?

ooh, I always love me an aristocrats deck. I know it is budget but I've got some suggestions (within budget) that can help improve this deck.

I used to play an aristocrats deck with Return to the Ranks. It was pretty medium. What I found out was, you will end up killing your op in one big turn where you sac everything and bring it back and sac again. It was never a little at a time because if I did it slowly, they would just remove the key pieces or win before I had a chance to bleed them out.

So with that in mind, here are my suggestions: recursive cards like Bloodsoaked Champion and Reassembling Skeleton are good for grinding, but not for explosive turns. What is best for that is cards like Doomed Traveler (which you have) and Hunted Witness (which you need). The reason they are explosive is because, without needing extra mana, they double each sacrifice. So with two Blood Artist effects in play and a recursion card you only need 2 dorks and a sac outlet (albeit that is 5 cards) to deal 19 dmg.

The other thing is, looking at your curve, you have way too many 2 drops. This was also a problem that I faced when I played the deck, it means that on turns 1 and 3, you often get stuck with extra mana laying around. Here is what I would suggest: replace Go for the Throat with Tragic Slip and replace Bloodthrone Vampire with Viscera Seer. That way you shift the cost towards 1 drops and can get cards out there faster.

The last thing, which I did not figure out, was card velocity. I could never get enough cards out fast enough. Many people suggested Collected Company but I wasnt about to pay 4 mana for two 1/1s. Others suggested ways to dump cards into my graveyard like Satyr Wayfinder and the like. But this exposed my deck even more to graveyard hate. Either way, all of this requires green which you don't have. So if you find yourself running out of card velocity, maybe try Night's Whisper or Read the Bones or a similar effect to that.

Hopefully my ramblings help. Let me know if you have any questions, and if you like my suggestions: check out my podcast all about brewing decks at mtgcoldbrew.buzzsprout.com (we're also on itunes and spotify)

P.S. cut those tap lands, you dont need the life gain and they will just slow you down.

Nice deck! I love madness. If you don't mind, here are a few suggestions for improvements:

For a madness deck to be good, you shouldn't include cards just because they say madness. Even if the rate of the madness cost is good, remember that that cost is always plus a minimum of a mana (since you had to cast another card beforehand). The only situation in which you will get full value for your madness is off of Liliana, but at that point you could just be casting a better card. Take Fiery Temper for example. I think this is probably the most popular madness card, but also the most over rated. When it is good, it feels reeeallly good. But when it is bad, it is beyond bad. This deck looks to be focused on inevitability, in that your win conditions are big, hard to deal with, threats that WILL win the game if the op does nothing. So would you play Lightning Bolt in this deck? Do you need to burn their face? No. You have hazoret for that. So what is the point of bolt other than creature removal? I understand that it speeds up the game, but my point is, why make it harder to cast bolt by playing fiery temper if it isn't an integral card to the deck anyways? I feel the same way about Biting Rain vs Damnation or Anger of the Gods or Sweltering Suns.

Ok, I'm done saying negative things. Here is what I like about the deck and what I think you can increase. Discarding cards for value is a great feeling. So you should include cards that like to be discarded, other than just madness cards. Like: Bloodghast and Cut / Ribbons. The good thing about cards like these is they can stay in your graveyard and do not have demand immediate mana like the madness cards do. I am not saying you need to cut the madness from the deck, just be very specific with which madness cards you are keeping. Don't just think of them in their best case scenario, but also not in their worst case scenario, you've got to think about things in averages. "on average, how good is this card?" Cards like Faithless Looting, Collective Brutality, and Kolaghan's Command are all great examples of cards that are pretty good most of the time, and are therefore great includes!

Hopefully my ramblings help. Let me know if you have any questions, and if you like my suggestions: check out my podcast all about brewing decks at mtgcoldbrew.buzzsprout.com (we're also on itunes and spotify)

I suggest focusing on smaller creatures that are easier to cast. If you're interested in playing modern, you will need to be faster than this. A good rule of thumb is: consistently be in a winning position or already have won on turn 4 or less. Decks in modern can play big creatures that cost 5 and 6 mana, but they have to be focused on casting those creatures early. This deck could be very powerful, but you should look for low cost flying creatures to get out early and fast to beat them before they can react. If you have any questions, please feel free to ask. Also, if you want some good deck ideas, check out my podcast at: mtgcoldbrew.buzzsprout.com