Plague

CASTS ON A 13+- Choose 1 enemy unit within 18" even if its in CC. Each model takes a T test. If failed the model suffers a wound with no armour save. If the unit is in CC, all units in CC with it are affected. Afterwards roll a die on a 1 the spell backfires your opponent can choose to end the spell or pick a unit with in 12" to pass the spell on to. On a 2-4 spell ends. on a 5-6 the casting player picks to end the spell or pass it on.