Tail StrikeSource Legacy of Dragons pg. 31
School transmutation [draconic]; Level alchemist 4, antipaladin 3, arcanist 3, blackguard 3, investigator 4, medium 3, paladin 3, sorcerer/wizard 3
CastingCasting Time 1 standard action
Components V, M (a dragon scale)
Duration 1 minute/level (see text)
DescriptionYou grow a draconic tail (clothing and armor adjust as necessary), or if you already have a tail, it takes on a draconic appearance. If you have a draconic bloodline, the tail matches the appearance of that dragon type; otherwise, it matches the appearance of a dragon type whose alignment matches your own. You gain a tail slam attack that deals 1d6 points of damage (1d4 if Small, 1d8 if Large) + your Strength modifier. If you already have a tail attack, you instead extend the reach of your tail attack by 5 feet. If you have a tail sweep attack, this spell increases its radius by 10 feet.
If used as part of a full-attack action, the tail slam is considered a secondary attack, is made at your full base attack bonus – 5, and adds half your Strength modifier to its damage. You can end this spell before its normal duration by uttering a bestial roar as a swift action. When you do, you can attempt an Intimidate check to demoralize all foes within a 30-foot radius that can hear the roar.
Clerics, inquisitors, oracles, and warpriests who worship dragon deities add tail strike to their class spell lists as a 4th-level spell.