[GAMEPLAY] Graves Q mana cost does not match tooltip indicator (it costs more than says)

In-depth description: Graves Q mana cost does not match the tooltip indicator. It says 50 mana level 1, but it costs 60 mana. Does not match for all levels of Q.

Step by step instructions:

1. Go into a custom game as Graves, preferably.
2. Level Q. Indicator says 50 mana.
3. Cast Q. You now have 262 mana.
4. Math skills: 322 - 262 = 60.

Frequency: Every time I cast Q! Sad