M15 known bugs

[LevelX]

I list here implemented cards that still have bugs, so everone can notice.
Or if in a good mood will fix it .

Garruk, Apex Predator
4th planeswalker ability does not trigger FIXED

Constricting Sliver
Return from exile ability does not work correctly yet. Because the gained abilities are removed if Constricting Sliver leaves the battlefiled. FIXED

Chief Engineer
Artifacts don’t lose the Convoke ability as permanent on the battlefield (not sure if this is correct behaviour) or if Chief Engineer has left the battlefield.

[emerald3x0]

Convoke
You can tap more creatures than the spell costs.