Multi pitch rock climbing experience is obligatory for this climb. You need to be able to follow French 6a and be familiar with crack climbing techniques. You need to be familiar with using crampons and ice axe as the approach is on glacier (you need to descend the short but steep and exposed summit ridge of the Aiguille du Midi).
The climb is 200m on vertical wall with 6a / 6b passages. While there are no overhangs and climbing is mostly on your feet, you need to have the stamina for technical climbing at nearly 4000m altitude!