Feat that takes a hit for a friend

[NapazTrix]

There was a feat, or something, that allowed a player to take a hit for an adjacent ally but I cannot for the life of me find it anywhere.

If anyone has or knows of this ability, or something similar, please let me know.

[Ruethgar]

The Parry feat line from a Dragon Mag lets you parry an attack against adjacent persons. AFB ATM so can't say which issue it was.

[gorfnab]

Constant Guardian and Dutiful Guardian from Drow of the Underdark may be want you're looking for.

[Thurbane]

If you're willing to go outside feats, both the Knight base class and Tactical Soldier PrC get abilities similar to this.

[DrMotives]

Sword & Fist has a whole PrC built around this idea, the Devoted Defender.

[Frosty]

http://www.d20pfsrd.com/feats/combat-feats/in-harm-s-way-combat

[Dread_Head]

Good Karma feat from Complete Scoundrel.