Elle Seraphine pour 25$usd (w/Eng guide)

Look for;Poro > Honest Broker > (Jayce + Vanguard armory) > Dredger > B.F. Sword

Poro and Broker to get a gold token early. Sacrifice the Token with Jayce to play Armory.
Dredger is a 2units for 2. kinda good for this deck.
B.F. is just a big boost overall for every token units, it'll stay all game and make them oppressive.

Battlefields:
Neutral: Treasure Hoard works insanely fine with the Jayce/Armory combo. no need to look for a Poro or Broker anymore and
it doesn't advantage a lot of decks your opponent might play so... good 1st pick.

2nd round: Trifarian War Camp is classic for swarm decks. I don't think you need any explanation on why it's good here.

3rd to go: Forbidding waste is kinda sick for your very weak units. making your units more of a threat in 1v1.

Decks' combos:
Gold token spawner(Poro/broker/Wages of pain/Treasure hoard) + Jayce sacrificing the token into Vanguard Armory.
Belows Breath + Imperial Decree to instakill 3to6 units.
Fanfare + Armory to draw 3 for 3cost.
Fanfare + Corina attack to draw 3
Rally the troops + Corina for 3buffed units
Rally the troops + Armory for 3buffed units
Imperial Decree + Swarming recruits for a game ending push
recruit + cull the weak
recruit + hidden blade

just so you get the idea.

Sideboard:
Deathgrip v.s. control decks
Turn to Dust v.s. Gears (Aurora, Hook, Jayce, etc.)
Dredge Up v.s. rush decks to get your combos as quickly as possible.
Singularity for mid range decks.