User blog comment:BlitzerRyuusei/Augurus, the Mana Weapon/@comment-7481207-20130831173203

His E seems to be giving way too much free tenacity, with an example build of Seraph's Embrace, Muramana, Rod of Ages (a bit of a waste due to the health but still much mana and AP), Iceborn Gauntlet and Frozen Heart, he would have 5778 mana on level 18 without counting masteries and runes. Not only is he really tanky, but that much mana also gives him 44% tenacity and slow reduction. And despite being really tanky, he would have 283 AP. While that isn't much, his high mana and Ap scaling on his Q would cause it to deal as much as 950 damage, which when enhanced with muramana becomes 1296 damage. His active E deals 1149 damage in a huge radius around him, 550 is as long as the avergae basic attack range, and on top of that has a slow and removal of crowd control. His W also gives him 86 armor and magic resistance. And then the ulti increases the damage of these abilities even further.

Of course, this would require him to get a fully charged Rod of Ages as well as filling two tears, so while he is bizarre on paper, most matches would end before he gets to his full power.