holy moly Jund, u mad bro?
Plans for a super-fast Jund infect deck (with a side of Zada silliness). Merely my take on a popular brew.
With the potential for a turn 2 win (Turn 1 Glistener Elf, turn 2 Assault Strobe + Groundswell), this deck is meant to strike fear into your opponent whenever you go into combat.
Our main source of early infect damage comes from our 1 and 2 drops, Glistener Elf, Ichorclaw Myr and Plague Stinger. They serve different purposes, but overall get the job done.
You may be thinking that, what with Dragonlord Kolaghan being in the deck, that there is a surprisingly lower amount of removal spells, but keep in mind that the infect creatures can serve a double purpose. Infect damage stay on the creature, so it's likely that you can trade with much bigger creatures (though pump spells are 2 for 1). If you get Kolaghan out, those chump blocks you did early game may cripple your opponent (on top of now having to deal with a 6/5 flier!)
Livewire Lash is the allstar of this deck. strap it onto a Plague Stinger by turn 4, and you can a beefy flier that your opponents can't reasonably hope to use spot removal on (for fear of Vines of Vastwood speeding up the infect).
strap it onto a Phyrexian Crusader, and that's it for any boros opponents!
Zada, Hedron Grinder gives all your pump spells a much needed boost in strength, and can give you great card advantage with Aphotic Wisps and Titan's Strength.
The sideboard is for the more drawn out control game. Arcbond is incredibly useful, as you can make your seemingly tiny 1/1 infect that's chumping a 5/5 completely blow up the board. Chandra's Ignition is more for the pre-emptive blow out (though there is a desire to pair it with a +4/+4 pump spell, so it's much more mana intensive).
Rancor... because Rancor.
The rest is basic removal and further infect shenanigans.