Grants Spd+3. Unit can counterattack regardless of foe's range. If unit's Spd > foe's Spd, reduces damage from attacks during combat and from area-of-effect Specials (excluding Røkkr area-of-effect Specials) by percentage = difference between stats × 4 (max 40%).
At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2, and if unit initiates combat, inflicts Atk/Def-4 on foe during combat and foe cannot make a follow-up attack.
For example, if both Urvan and Deflect Magic 1 activate, the total damage reduction is 86% instead of 110%, since the two skills reduce the damage to (1 − 80%) × (1 − 30%) = 14% of the original.
As a general rule, if a unit is both prevented from making, and guaranteed to make, a follow-up attack, the effects cancel out, and the standard speed check decides instead.
Distant Counter.
Wo Dao+.
Triangle Adept.
Urvan and 
Deflect Magic 1 activate, the total damage reduction is 86% instead of 110%, since the two skills reduce the damage to (1 − 80%) × (1 − 30%) = 14% of the original.
Twin Blades and 
.
Null Follow-Up 3 and 
Daring Fighter 3 is unaffected by Nightmare Horn's follow-up attack prevention.
bonus.
