One for those who like it extreme, this alternative entry to the Dario couloir is both steep and committing.
FATMAP difficulty grade
Although rarely in condition, this line is worth seeking out when it is.
The top is often rocky and the line is steep throughout.
It puts you onto the glacier below so make sure you are equipped, prepared and have practised crevasse rescue, however unlikely you think falling in a crevasse is- it is possible! A minimum would be each person to have harness, axe, crampons, an ice screw, 3 prussiks, several screwgates, a pulley/DMM Revolver karabiner, a couple of slings and 2 30m ropes in the group.
A more modern simple solution substituting for many of the above might be 2 Petzl RAD systems in the group.
If you have any doubts about this ski with an IFMGA Mountain Guide.