I like the direction of this deck, but it needs some work.Mardu list:
[deck]
4 Soldier of the Pantheon
4 Foundry Street Denizen
4 Borderland Marauder
3 Generator Servant
4 Goblin Rabblemaster
3 Brimaz, King of Oreskos
1 Iroas, God of Victory
Spells
3 Sorin, Solemn Visitor
3 Mardu Ascendancy
2 Spear of Heliod
4 Stoke the Flames
2 Mardu Charm
Lands
4 Mana Confluence
2 Bloodstained Mire
3 Temple of Malice
1 Temple of Triumph
4 Battlefield Forge
3 Caves of Koilos
1 Swamp
2 Mountain
3 Plains
[/deck]
Turn 1 Denizen > Turn 2 Servant (swing for two) > Turn 3 Sack for Border and Rabble, potentially swing for 12.
I think Iroas becomes ridiculously good here and I might add an extra one.
Things I like:
nSoldier of the Pantheon (this guys value should go way up.)
Rabble + Brimaz + Iroas
Things I dislike:
Your Manabase
Your Manacurve
Foundry Street (Red creatures only)
Borderland
Genny
Here's what I think would help:
[deck] Mardu Tokens[/deck]
Akroan Hoplite + Rabblemaster mean you'll attack for huge chunks along with your little guys. Tymaret gives you a bunch of reach late game. Launch the fleet just seems awesome in this kind of deck.