I don't think, that it's a good idea to add another "cheap" common tower destroyer (who cares for the summoned wind, when winning two turns later??)
combined with thieves with honor (same lame malus), stone gargoyle, javeliner" and a well placed trigger trap, (maybe an infiltrator, if needed) you can have a devestating starting hand, that kills opponent in a few turns just with common cards.
Let it "zap" enemy creatures instead ;-)
...or add a condition: eg: If tower >35 or something...
compared with flame spitter or invisible squad (both tower:-9) it is in the range of a very good uncommon tower-crushing-card.
I also suppose, that aria is a quite useful keyword... isn't it??