Ok ^_^try not to copy exactly what i say :/
ok for hte next jutsu you will need to focus your chakra on your shadow and expand it a little, from that expanded shadow, channel your chakra through it and using shape manipulation create spikes that come from the shadow that strike my clone.
*creates a clone*
~I focus chakra on my shadow and send it at your clone,the shadow then transforms into shadow spikes that strikes your clone,poofing him~