Fated Mutation

Use this Stratagem in the Fight phase just before
a unit of Tzeentch Chaos Spawn from your army
fights. Instead of rolling a D3 for that unit's
Mutated Beyond Reason ability this phase, you
can choose the result from the table. In addition,
you can re-roll the number of attacks each Chaos
Spawn in the unit makes until the end of the
phase.
Tzeentch often toys with the form of his minions, remoulding and mutating them into new shapes that
he finds altogether more pleasing.