Army Compositions?

Currently I've been going Ninja + Demons. Its been working out pretty well for me. With this setup I usually have

4 Demons - 50% mana burn 4 Ninjas - 80% attack + 1 Exile - Health Shield 3 Assassin - 150% Crits 3 Blade Masters - 45% Double Attack

Usually need the Item which turns 1 of your champions into a Demon. I usually pick Kennen cause his AOE attack has a 50% chance to burn mana. It also lets him get his ultimate sooner.

I also give Shen as many tank items as possible so he can get his ability off next to Kennen and Morg to keep them alive. Double Mantle - Dragon's Talon Double Armor - Thornmail Double Health - Warmog

Alternative items AOE Support items are Redemption Banner Locket

This is my typical formation.

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What are some other fun comps to run?