Make a bunch of tokens with Akroan Crusader and Young Pyromancer, splashing for Hidden Strings to "go off" and Boros Charm for reach and protection against wrath. You can also exile spells to Nivmagus Elemental after they trigger Crusader and Young Pyro. All of this is inside a more typical monored aggro shell, with the unleash creatures filling that role.
Hidden Strings does sick stuff - you can untap your own lands (so it is good in multiples), tap down blockers and or any opponent's lands, or target Akroan Crusader. Cipher triggers both Young Pyro and Akroan Crusader, and the cipher copies can be exiled to Nivmagus Elemental. Plus, the double strike on Boros Charm can let you double your cipher triggers.
This deck plays like a combo aggro deck. It is fairly all in, though it can create an explosive turn later in the game with Hidden Strings. I often win out of nowhere with Dynacharge, which is very powerful here.
The sideboard: Pithing Needle is for Jace, Wear and Tear is for Whip of Erebos primarily, Dispel is against blue/white control, and Chained is for any very problematic creatures. The Gods Willing and Mizzium Skin are also vs. control - they protect the key cards and can provide tempo. Mizzium Skin also protects against some sweepers (e.g. Golgari Charm).
I typically take out Coordinated Assault and Weapon Surge when sideboarding, as the deck is already very threat light, but Nivmagus Elemental is so bad against some control decks that I will cut one or two sometimes.
