ENTROPIC STRIKE

Use this Stratagem in the Fight phase, when a
C'TAN SHARD model from your army is
selected to fight. Until the end of the phase, each
time a melee attack is made by that model,
invulnerable saving throws cannot be taken
against that attack.
With every clenched fist, searing gaze and
contemptuous gesture, the C'tan Shard obliterates from existence the matter that comprises its enemies.