  The role of type II spicules in the corona has been a much debated topic in
recent years. This paper aims to shed light on the impact of type II spicules
in the corona using novel 2.5D radiative MHD simulations including ion-neutral
interaction effects with the Bifrost code. We find that the formation of
simulated type II spicules, driven by the release of magnetic tension, impacts
the corona in various manners. Associated with the formation of spicules, the
corona exhibits 1) magneto-acoustic shocks and flows which supply mass to
coronal loops, and 2) transversal magnetic waves and electric currents that
propagate at Alfv\'en speeds. The transversal waves and electric currents,
generated by the spicule's driver and lasting for many minutes, are dissipated
and heat the associated loop. These complex interactions in the corona can be
connected with blue shifted secondary components in coronal spectral lines
(Red-Blue asymmetries) observed with Hinode/EIS and SOHO/SUMER, as well as the
EUV counterpart of type II spicules and propagating coronal disturbances (PCDs)
observed with the 171~\AA\ and 193~\AA\ SDO/AIA channels.
