this way silencer will become alot more annoying for the enemy's team
And this way Silencer will attract more fire from the enemies.
Too imba for my taste. You either decrease the cooldown or decrease the duration. A clash could be easily won with Silencer if this is the case.
Actually this could also nerf Last Word a bit. Because it actually doesn't matter if one hero casts a skill and silences the whole team since if they cast a skill they'll be silenced and if another enemy casts a skill they'll be silenced too. Considering the fact that the main target of Last Word are those chain nukers/supporters/low cooldown spells and the like.