Level: Mage 3;
Components: V, S;
Casting Time: Attack action;
Range: Close (25 ft. + 5 ft./2 levels);
Targets: One
weapon or 50 projectiles, all of which must be in contact with each other at the time of casting;
Duration: 10 minutes/
level;
Saving Throw: Will negates (harmless, object);
Spell Resistance: Yes (harmless, object)
This
transmutation doubles the threat
range of the weapon. A threat
range of 20 becomes 19-20. A threat
range of 19-20 becomes 17-20. A threat
range of 18-20 becomes 15-20. The
spell can be cast only on piercing or slashing
weapons (and it does not stack with itself). If cast on arrows or crossbow bolts, the keen edge on a particular projectile ends after one use, whether or not the missile strikes its intended
target.