User blog comment:ClariS/Nalis, the Scarlet Cardinal/@comment-69.119.114.73-20121128195940/@comment-4881935-20121129205456

I'll up the mana cost then, but only because I see it only being a problem with the early game and even then, it's a tiny concern for me.

Early game, even with a proper block, that's still 14 seconds of an opening to get harassed from and the boost you get is not effective for early game.

If they are blocking too much, try to bait it out then before casting your ability or get them to waste it on a weaker spell. One combo can be easily done within 14 seconds.