Gift Of Mutation

Daemons of Tzeentch
If this spell is cast with a casting result of 8 or more,
the target enemy unit suffers a -D3 modifier to one
of the following characteristics (to a minimum of 1,
chosen by the casting player). If this spell is cast with
a casting result of 12 or more, the target enemy unit
suffers a -D3 modifier to two of the following
characteristics (to a minimum of 1, chosen by the
casting player). This spell lasts until your next Start
of Turn sub-phase:
•Weapon skill {b