I've been having a lot of success lately with a tank build on Anivia.
Order of items:
-Tear(needed for any kind of mana for stuns, walls, and slows, eventually becomes archangel)
-Murcury Boots(most of the time, otherwise switftness)
-Warmog's armour(massive health)
-Guardian Angel(massive armour and revive)
With the 2 revives and high armor, everyone seems to target me even though I'm no longer squishy, and stay away from dps and others, and i can still cast lvl 5 walls or slows to stop them from moving too much. If i go down, chances are i pop right back up, its fun.