Out of bordem....
Scarlet using Flight Armor while Knighting uses Silfolion Sonic Speed Sword.
http://www.mangafox.com/manga/fairy_...22/c180/8.html
http://www.mangafox.com/manga/fairy_...22/c180/9.html
But yeah Erza is slow as shit right?
Erza eating some more damage
http://www.mangafox.com/manga/fairy_...2/c180/10.html
When destructive forces clash it destroys the entire battle area. Far more destructive than anything Lee is shown doing.
http://www.mangafox.com/manga/fairy_...22/c193/8.html
For LOLZ Erza taking punches to the face.
http://www.mangafox.com/manga/fairy_...2/c193/10.html
Erza's head getting smacked into the ground causing it to shatter.
http://www.mangafox.com/manga/fairy_...2/c193/11.html
Erza get's smacked around by a giant wood fist.
http://www.mangafox.com/manga/fairy_...5/c236/10.html
Erza taking direct explosion damage.
http://www.mangafox.com/manga/fairy_...5/c236/13.html
PS: It's fairly simple Lee uses so called trumps like Lotus which is not instant while Erza switches to Herculean armor. Once Lotus is finished she switches to something else like say Heaven's Wheel, Black Wing, Purgatory, Flight, or Morning Star Armor & uses something like Circle Sword, Blumenbatt, or Photon Slicer to quickly finish off the now injured Lee. Pretty basic strategy here Lee's best abilities actually put him at a handy cap while I've shown way more proof than needed to suggest that Erza can take a beating.