To understand this deck on the basic level: spam minotaurs in a fashion similar to Modern Merfolk. It's pretty fun and if uninterrupted by constant removal can win on Turn 4.
1 Mana
At the bottom of the curve, we have 10 removal spells - 4 Push, 4 Bolt, 2 Paths. Simple package, we run mostly with a splash of , and most decks in this meta are removed by the two former spells without the drawback that comes with the third, ergo less from that one.
We also run 4x Gnarled Scarhide as a 1-mana 2/1. We're running the most Zoo-ey deck possible, so we need to fill the lower curve as much as humanly possible.
Aether Vial is a great addition at one mana. It's especially useful on 3, but can be used up until then.
2 mana
We run Bloodrage Brawler. When this card was spoiled, there was a lot of speculation for many different reasons. Is it going to be useful in Madness decks in Standard as a 2-mana 4/3 with a drawback that was actually a benefit (a deck that was never quite good enough)? Is it going to make headway in Modern Zoo decks? (It doesn't - Greenwheel Liberator is too good on those decks, and the drawback is too significant for this deck) Instead of all that, it finds use instead in this deck. The stats are encouraging, and the two-mana aspect is extremely useful.
Metallic Mimic is a lord creature for 2 mana. Our curve is pretty high - we have 3 three-drops - so we don't need a fourth in the form of Adaptive Automaton. It's not as universally good, but it's alright as a curve-lowerer, plus the counters help. Especially with the Brawler and Scarhide entering as 5/4's for , and 3/2's for respectively.
3 Mana
This is where all the magic starts to happen. We run Rageblood Shaman as lord 5-8, only it gives us trample. It lets us trample over most things our opponents' chump blockers.
Neheb, the Worthy gives your stuff first strike, and it gives them +2/+0 as long as your hand is almost or completely empty. The synergy with the Brawler here is pretty funky, since your hand usually isn't going to be until turn four without the Brawler, which is often fine, but with the Brawler you can swing in with some extra, angry power on that turn three.
The card that made me want to build this deck initially was Ragemonger. The card lets you play your stuff for half their cost. Neheb, Brawler, and other Ragemongers costs , and Scarhides are free.
5 mana
The 1-of Kragma Warcaller is there for haste purposes, can attack immediately and does the same as Neheb on attacking creatures. And, with a Ragemonger out, it can come out for .
Sideboard
Blood Moon aganst Tron decks, Control decks etc., decks that need nonbasic lands.
Boros Reckoner beats your standard Bogles or otherwise Voltron decks, especially Grixis Death's Shadow.
Damping Sphere against Storm and Tron.
Felhide Petrifier for the combo with Neheb, and again good against Bogles decks.
Leyline of Sanctity for any Storm, Burn, Lantern, or any targeting effects.
Rakdos Charm is our most volatile card. Graveyard hate, artifact hate or anti-token combo, good against a comboed-out Storm on the Empty-the-Warrens route.
Vandalblast is useful against mass-artifact strategies like Lantern or Affinity.
