Invalidate is broken
I was playing a PVP match. My champ has Invalidate, which is supposed to prevent all buffs and debuffs. However, the enemy Flight used some skill (I forgot the name) that raised ALL of its stats. The invalidate banner thing showed up like 5 times, but when the Flight was attacked and when it attacked us, I believe the stat buffs it experienced DID work, even though they shouldn't have. I may be wrong, but it sure seemed like it, since the Flight was taking almost no damage and killing 1/2 of an A- Class Champ in one hit.