Really good against defensive decks since it allows any of your monster equipped with this to be able to deal piercing damage.
It comes with no attack increase, unlike the other spell cards.
Being able to do piercing allows for some combo potentials like using Mystic Box on Stray Lambs to deal as good as a direct damage, or use Metalmorph for increased damage. Micro Ray can mean a direct attack as well.
yep, got beat by a duelist using this sort of combination along with big bang shot as well. threw in a few 'tailor of the fickle' as well. was quite surprised as well as annoyed....
on the bright side though, might be helpful against those annoying Naturia decks. hwahahahaha!!!!