  Moir\'e transition metal dichalcogenide (TMD) systems provide a tunable
platform for studying electron-correlation driven quantum phases. Such phases
have so far been found at rational fillings of the moir\'e superlattice, and it
is believed that lattice commensurability plays a key role in their stability.
In this work, we show via magnetotransport measurements on twisted WSe2 that
new correlated electronic phases can exist away from commensurability. The
first phase is an antiferromagnetic metal that is driven by proximity to the
van Hove singularity. The second is a re-entrant magnetic field-driven
insulator. This insulator is formed from a small and equal density of electrons
and holes with opposite spin projections - an Ising excitonic insulator.
