Intro
For 
Decklist
The biggest reason to play Amazons is Canopy Sniper and Arkmonian Onslaught. Canopy Sniper gives you crazy board control if you have a few Amazons on board. Your opponent won’t be able to stick a creature with Sniper on board. While Arkmonian Onslaught will win the game if you get it off on your Amazons. Both cards incentivize you to go wide with Amazons to get the most out of them.
Based on this, you want to get board control early so you can keep your Amazons alive, so you want to have sticky creatures and good ways to protect them. This puts a focus on the early game shown by 21 1 and 2 drops.
The heavy emphasis on the early game also means that you run out of gas quickly and have a difficult time coming back if you fall behind. So it might be worth adjusting the mana curve and moving towards midrange depending on your preference and the meta.
Card Choices
Amazons
Amazon Conscript: Cheap Amazon with good stats early. 2/3 stats for 1 mana if you have another creature.
Barksworn Trailmaker: 1hp is weak but the afterlife helps you maintain board presence.
Sanctum Guardian: 1/3 with regen 1 that can gain 1hp if you control an Amazon. Hard to kill early and great body for getting buffed.
Canopy Sniper: The biggest new reason to play Amazons. As mentioned before, the ping gives you strong board control early.
Penthesilean Warrior: The 2/2 body is kinda small but the buff can help you trade early.
Riverjumper Captain: Ward is great at staying alive vs control decks. With 1 amazon you get an on-curve 2/4 with ward, more than 1 amazon is amazing. If you have a wide board Riverjumper can be a monster.
Agrodor Protector: Well-statted 4 mana frontline with regen 1. Good body for getting buffed and the frontline helps keep your smaller amazons alive while setting up for your 5 mana plays.
Myrto’s Daughter: Probably the strongest card for Amazon, it makes good trade or gives a big buff. The flexibility is where it shines, it can give itself +2/+2 to be a 4/4 blitz or a 2/2 blitz that gives a +4/+3 buff to another random amazon. 5 mana 4/4 blitz can take out most early creatures and live, while the +4/+3 buff will make one of your amazons huge to trade or push face damage.
Nightleaf Warrior: Hidden prevents it from getting removed easily to ensure you have a creature to buff next turn.
Nimble Pixie: The 2 1/1s are great for your amazon synergies like getting buffed by Onslaught, buffing Riverjumper, or proccing Sniper.
Other Creatures
Chiron, the Teacher: Great versatile creature. Good for buffing one of your creatures and/or as relic removal.
Underbrush Boar: Amazing creature that will 2 for 1 most of the time, acting as a body and removal. 3/3 with usually eat an early creature and force removal from the opponent or boar will eat another creature.
Pyramid Warden: The beefy 6hp and frontline protect your amazon board so you can take advantage of the amazon synergies. The deck is aggressive enough that you won’t often get to the late game where the afterlife can be a huge liability.
Spell/Relic
Pack Stalk: I got the idea from
aggro nature decks. It lets you play Amazons then refresh your mana to get a big buff or play it early to go extra wide. You can save up your Amazons if you are behind to play them with pack stalk and onslaught for a huge swing.
Arkmonian Onslaught: +3/+2 and twinstrike to your amazons. Big buff that can win games by letting you clear board and go face for tons of damage.
Faeflame Blade: Twinstrike and Blitz can take out weak creatures while the confused can make trading harder for your opponent.
Maybe
Primal Guidance/Canopy Barrage/Lightning Strike: It’s hard finding room for removal spells since you want to go really heavy on amazons. Removal spells are usually good but they can end up useless against control and ward-heavy decks. Since you are heavy on 1 and 2 drops, I think Faeflame and Boar are enough removal to hand early creatures. It’s up to you if you need more removal.
Springbloom Hunter/Amazon Spearsoul/Barksworn Protector/Barksworn Ranger/Hunt Warden: They’re fine on-curve creatures, run them depending on how you want your mana curve and what removal is around in the meta. These creatures aren’t as sticky as the ones already on deck.
Gersemi, Freyja’s Spear: Not sure if the effect is worth making room for it.
Not Run
Pixielock: Helps you go wide but at 3 mana a 1/3 body is too weak and dies easily.
Steadfast Scout: I’m not a fan of the card. If don’t have two other creatures it’s a 3m 1/3 terribly understatted, if you do that you get +1hp over the Vanilla Hunt Warden. The upside is small while the downside is awful.
Nightleaf Prowler: 6 mana is too late for this deck and Prowler fits more into a combo-style Amazon deck.
General Orythia: I don’t think you’ll be able to play Orythia often. You’ll either have already won or lost by 7 mana with this deck.