XSLT recursive copy part of xml and apply templates on that

I have next XML. next problem. I made templetes for children of weneedit node. and i need remove all exclude weneedit and his children. I can't apply template and make recursive copy together.

<?xml version="1.0" encoding="UTF-8"?>
<root>
  <list>
    <element>
      <subelement>123</subelement>
    </element>
    <element>
    <subelement>
      <weneedit>
        <andit>
          <helpfultext>
          </helpfultext>
        </andit>
      </weneedit>
    </subelement>
    </element>

  </list>
  <tag>
  <rt>321</rt>
  <tag>
</root>

I have tried do like that

<xsl:template match="@*|node()">
    <xsl:copy>
        <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
</xsl:template>

<xsl:template match="n:weneedit">
    <xsl:copy-of select="parent::node()"/>
</xsl:template>

but works one or other template not together

i want to get something like this

<subelement>
  <weneedit>
    <andit>
      <helpfultext>it was edited</helpfultext>
    </andit>
  </weneedit>
</subelement>