Creatures:
Tide Drifter
is a 0/5 that buffs our other dudes and becomes real scary once Assault Formation is on the board
Benthic Infiltrator
can be a fast clock with Assault Formation in play and an annoying pinger when it isn't.
Vile Aggregate
can help us through times when we don't have our enchantment since it doesn't neccessarily have low power.
Herald of Kozilek comes in at instant speed, can protect our creatures and can attack for a little damage even without Assault Formation.
Goldnight Castigator is a double-edged sword but it can destroy our opponents from turn 4 on (if they don't have flyers) and since it has haste it can come in unexpected and finish up our opponent the same turn.
Sidisi's Faithful
is a wonderful low drop which can slow down our opponents early on.
Enchantments:
Assault Formation is the core of this deck and makes our cheap blocker swing for loads and loads of damage.
Vessel of Nascency
helps us dig for Assault Formation and creatures once that is on the board.
Socery:
Radiant Flames
shouldn't hit anything from us but will destroy our opponent's little dudes.
Instant:
Anticipate see
Vessel of Nascency
, we depend on Assault Formation and it's possible that we have to find more than one copy in one game.
Shape the Sands
can be an amazing offense but also a reasonable defense against big flyers.
Negate we don't know how much enchantment removal our opponent has but this is useful against anything