Mammoth Riders/Pike Phalanx combo with ambush

By SummerSeaCaptain, in 4. AGoT Deck Construction

Hi everyone. I wanted to build a Targaryen deck and after summer/dragon/dothraki variation I stumbed upon this possible combo: the idea is to play as soon as possible the Pike Phalanx and then the Mammoth Riders, win the initiative and attack with Riders + Pike to claim one more, probably win the military challenge (with 10 str...) and kill a minimum of two characters each round.
Then, the claim is still +1 for intrigue and powers challenges too, and will use Khal Drogo (that I put into play after winning the first) or other ambush characters (that are not limited by the effect of the riders) to discard two card (with dragon thief) or claim two power (with Kahl, dragon, etc).

After some search I decided to introduce the summer combo too....so that I can use fairweather followers, draw one card more with the agenda and myrish villa/summer camp(to retrieve kneeling ambush characters and then play them standing with ambush) / dragon sight...

Here is my list, if you have any suggestion............they are welcome!

House (1)
House Targaryen (Core) x1


Agenda (1)
Kings of Summer (ASoS) x1


Character (31)
Horseback Hunters (ASoSilence) x3
Horseback Archers (QoD) x3
Khal Drogo (Core) x2
Mammoth Riders (BtW) x3
Pike Phalanx (QoD) x3
Disgruntled Mercenary (BoRF) x3
Drogon (QoD) x2
Rhaegal (QoD) x2
Viserion (QoD) x2
Dragon Thief (AE) x3
Fairweather Followers (ASoS) x3
Advisor to the Crown (QoD) x2


Location (17)
Kingsroad Fiefdom (QoD) x2
Eastern Fiefdoms (Core) x3
Khal Drogo's Tent (Core) x1
Summer Sea (Core) x3
Crossroads (Core) x2
Myrish Villa (QoD) x3
Summer Encampment (SA) x3


Event (7)
Ambush from the Plains (QoD) x3
The Price of War (KotS) x2
Die by the Sword (LoW) x2


Attachment (6)
Black Raven (ASoS) x3
Dragon Sight (ASoS) x3


Plot (7)
A Time for Ravens (ACoS) x1
Siege of Riverrun (KotS) x1
Summoning Season (Core) x1
Muster the Realm! (QoD) x1
Storm of Swords (LoW) x1
The Power of Arms (Core) x2

Mammoth Riders says:

"...you cannot play any further cards from your hand this round"

so you can't play from your hand cards with Ambush...

...but ambush is "put into play", not "play", so I still think it will work.

I would suggest adding something else for draw, Jhogo or 1-2x Sam + 3 Carrion Birds. Without the Carrion Birds, Winter could be a big problem, and once you have 6 Raven cards, you might as well make room for Sam.