How should the Witch Doctor's Q ability be used?

In Heroes of the Storm, the Witch Doctor tosses pots of spiders on his Q slot. They seem to be fairly slow and do not appear to do much damage. I think I might be using this wrong, as I tend to throw it at enemy heroes behind the minion line. How should I be using this ability?
Best Answer
That's a valid and good use, assuming the spiders actually agro to the heroes and not the minions. The spiders are not good at lane pushing like the toads are, but they do make for good harass. Since they cannot be targeted, you force enemy heroes to either flee or stand there and take the damage. If you take Leaping Spiders at level 16, the spiders become a lot more useful. You have the right idea, but make sure you use them meaningfully to harass and don't just throw them because they're off cooldown
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