Talk:Tear of the Goddess/@comment-123.24.15.144-20120618155840/@comment-114.77.193.111-20120718120422

I can (anecdotally) support this observation; it seems that the 3s cooldown is independent for each ability activated. e.g. If Karthus q's several times within 3s, the mana only stacks once per 3s. However, Ezreal uses qwe within 3s would stack 3 times, so facerolling would stack mana faster than listed above.

P.S. I also edited the article concerning another observation: If you have a stacked ToG/related and sell it, the mana attached to the item (350 for ToG) immediately goes away, but the bonus stacks persist for a few seconds.

If left alone, the bonus wears off, and future ToGs will start from 0 stacks. If a ToG/related is bought before the bonus wears off, the item will retain previous stacks.