Does a Ring of Far Strike threaten all enemies within 30 feet by RAW?
Here is the rules for threatening:
Spoiler:
Threatened Squares: You threaten all squares into which you can make a melee attack, even when it is not your turn. Generally, that means everything in all squares adjacent to your space (including diagonally). An enemy that takes certain actions while in a threatened square provokes an attack of opportunity from you. If you're unarmed, you don't normally threaten any squares and thus can't make attacks of opportunity.
Here is the ring:
Spoiler:
Ring of Far Strike
Source Ranged Tactics Toolbox pg. 29
Aura moderate transmutation CL 8th
Slot ring; Price 6,000 gp; Weight —
Description
This unassuming black ring changes color to a silver pearlescent sheen when held near a fire. Once per day as a standard action, the wearer can make a melee weapon attack or unarmed strike attack against any opponent within 30 feet. The wearer must be otherwise capable of performing the attack to use this ability.
Construction
Requirements Forge Ring, mage hand, spectral hand; Cost 3,000 gp
Source Ranged Tactics Toolbox pg. 29
Aura moderate transmutation CL 8th
Slot ring; Price 6,000 gp; Weight —
Description
This unassuming black ring changes color to a silver pearlescent sheen when held near a fire. Once per day as a standard action, the wearer can make a melee weapon attack or unarmed strike attack against any opponent within 30 feet. The wearer must be otherwise capable of performing the attack to use this ability.
Construction
Requirements Forge Ring, mage hand, spectral hand; Cost 3,000 gp
Since the user can attack within 30 feat, does he threaten that area as well? If so, that a cheap way to give allies flanking bonuses. Especially if combined with the feat Gang Up.