Wind Blast is a magic missile with a range of 24". The target is 'pushed' D3+1" directly away from the caster (it does not change facing). If the target unit comes into contact with impassable terrain it stops 1" away and suffers D6 Strength 3 hits. If the target unit comes into contact with another unit it stops 1" away and both units suffer D6 Strength 3 hits. Targets that cannot move are not pushed back at all, but still suffer D6 Strength 3 hits. The caster can choose to summon a more powerful wind that pushes the target back D6+2", rather than D3+1". If he does so, the casting value is increased to 14+.