While many materials typically are either brittle or ductile, ice exhibits different behaviour depending on the loading: Under tensile stresses ice is extremely brittle, when shear loads are applied it develops shear bands and fails in a ductile manner, and when the rate of loading is sufficiently slow it only exhibits viscous creep without this leading to any damage. This difference in behaviour has a strong impact on the stability of ice-cliffs, with vastly different failure modes being predicted depending on the exact failure criterion used [1,2]. Here, a modelling framework able to capture both these different regimes will be presented, using the phase-field fracture paradigm to allow for complex fracture patterns. Shear bands are captured through Von Mises plasticity, which accumulates damage leading to eventual fracture. Power-law creep is included with the plastic strains resulting from this creep being considered as non-damaging. As shear bands are expected to occur in compressive loading, we combine this formulation with a Cosserat continuum to ensure that shear bands retain a finite thickness, obtaining mesh independent results. Application will be shown to both small-scale tri-axial compression tests, demonstrating the accuracy of the model and its ability to reproduce experimental results, as well as large-scale cliff failure to showcase the impact of using this material model on predictions of ice-cliff failure.