Please be mindful how Tear changes can also break some AD champions

Correct me if I'm wrong but refunding 25% mana can be way more efficient than 25% mana regen, i.e. a will regen ~3,5 mana every 5 seconds from current Tear/Manamune on level 18, but after change he could regain ~19 points each time he casts E, what he can do every 5 seconds right on level 9. At this point, this grants him equivalent of 200% mana regen from spamming E alone. I imagine follows similar logic but I'm too lazy to do maths twice. And be honest, for Yorick who got his tear spamming E every time it's up on his enemy is not an unrealistic scenario.

Some AP champions with spammable abilities could break this way too, i.e. , but they are being adjusted at the moment.