What are good strategy multiplayer iphone games?

My friend and i are looking for, kinda a complex, strategy game that we can play against each other/with. We want something that takes a lot of strategy to play and which has clans and teams going against each other.clash of clans is a GREAT example of what i'm looking for. Do you guys have any ideas? It can be a tapping game, but just something strategic.

Maybe you can try the games as follow

Clash of Clans
Slice HD
Dark Legends
Tom Clancy's Rainbow Six: Shadow Vanguard
Hay Day
Mike V: Skateboard Party HD Lite
Tiny Wings
Armada: Galactic War
FIFA SOCCER 13 by EA SPORTS
Star Legends

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