[QUOTE=Mustkunstn1k;287268]You are allowed 20 abilities.
Maximum 3 active abilities.
This means you can have minimum 17 passive abilities. But you don’t have to get 3 active, you can have 20 passive too (probably).[/QUOTE]
Active and passive refer to the kind of ability. Extra health is passive, a self-revive is active.
You are allowed 20 in total, 5 class abillities in-game out of which 3 may be active. How many active you’ve lying around in your bank doesn’t matter.