We need more AP / magic pene item and also need to nerf Void staff (this is the tl;dr)

Not a secret that is extremely strong currently, but it's the only way for most mages to deal with tanks.

Without the enemy can get and you won't deal damage anymore to him With the enemy can build shit tons of MR, it won't feel like it

Honestly this binary shit needs to be changed, we need something along these : but as a true AP version (wits end literally reducing MR but being built by mostly on-hit aka AD champions omegalul and barely built anymore)

This is boring for both sides, before Void staff, mage is so easily being shut down, after a Void staff, any mage becomes an assassin / burst mage to the point that some high ranked players started building it as a second item.

This feels like true damage state at this point, totally binary and no way to counter it, but without it you're useless