Rune of Razorice

Rune of Razorice
	Rune of Razorice; Level 55 death knight ability; 5 sec cast; Requires; Affixes your weapon with a rune that causes 10% extra weapon damage as Frost damage and increases enemies' vulnerability to your Frost attacks by 3%, stacking up to 5 times. Modifying your rune weapon requires a Rune Forge in Ebon Hold.;
Usable by
Class	Death Knight
Type	N/A
School	N/A
Cooldown	None/Global Cooldown
Other information
Level learned	55
Related debuff
	Razorice; Frost damage taken from the Death Knight's abilities increased by 3%.; Duration: 20 seconds;

Rune of Razorice is a death knight frost rune that can be made through [Runeforging]. Frost death knights will use this on their off-hand weapon (with [Rune of the Fallen Crusader] on the main hand) to boost their frost damage on single target fights.

Patches and hotfixes

Patch 7.1.0 (2016-10-25): Now increases Frost damage by 3% per stack (was 2%).
Hotfix (2016-08-22): "Rune of Razorice now correctly increases the damage of some previously unaffected Frost abilities."
Patch 7.0.3 (2016-07-19): Now deals 10% additional weapon damage (up from 4%).
Patch 6.0.2 (2014-10-14): Now deals 4% additional weapon damage (up from 3%), and increases Frost damage by 2% per stack (down from 3%).
Patch 5.4.0 (2013-09-10): Now causes 3% extra weapon damage as Frost damage (up from 2%), and each stack of Frost Vulnerability now causes the target to take an additional 3% damage from the Death Knight's Frost attacks (up from 2%).
Patch 3.3.3 (2010-03-23): Now stacks 5 stacks of 2% Frost Vulnerability instead of 10 stacks of 1% Frost Vulnerability. Proc chance changed to 100%.
Patch 3.2.2 (2009-09-22): The frost vulnerability granted by this enchantment will now increase the damage done by Frost Fever as intended.
Patch 3.2.0 (2009-08-04):
- Each death knight can now have his or her own copy of this debuff on the target.
- Corrected a bug where this applied to frost damage done by others.
Hotfix (2009-04-01): "
- The debuff caused by the Rune of Razorice is no longer dispellable.
- The weapon enchants Rune of Razorice and [Rune of Lichbane] will no longer cause the [Killing Machine] talent to be triggered more often."
Patch 3.0.2 (2008-10-14): Added.

Rune of Razorice
Rune of Razorice Level 55 death knight ability 5 sec cast Requires Affixes your weapon with a rune that causes 10% extra weapon damage as Frost damage and increases enemies' vulnerability to your Frost attacks by 3%, stacking up to 5 times. Modifying your rune weapon requires a Rune Forge in Ebon Hold.
Usable by
Class	Death Knight
Type	N/A
School	N/A
Cooldown	None/Global Cooldown
Other information
Level learned	55
Related debuff
Razorice Frost damage taken from the Death Knight's abilities increased by 3%. Duration: 20 seconds