Frost Strike is a a level 55 Frost death knight that deals Frost damage.
Patches and hotfixes
Hotfix (2016-09-23): "Frost Strike damage increased by 12%."
Legion Patch 7.0.3 (2016-07-19): Now deals 500% of weapon damage, up from 88%.
Hotfix (2016-03-03): "Now deals 10% less damage against another player."
Warlords of Draenor Patch 6.2.3 (2015-11-17): Damage has been increased by 10%.
Warlords of Draenor Patch 6.2.0 (2015-06-23): Now deals 20% more damage.
Warlords of Draenor Patch 6.0.2 (2014-10-14):
Now replaces [Death Coil] for Frost death knights.
Damage has been increased by 100%, but its Runic Power cost has been increased by 5 (up to 25 Runic Power in Frost Presence, and 40 Runic Power in other Presences).
Mists of Pandaria Patch 5.4.0 (2013-09-10): Now deals 115% weapons damage (up from 105% weapon damage).
Mists of Pandaria Patch 5.0.4 (2012-08-28): Now replaces Blood Strike. Weapon damage reduced from 130% to 105%, and bonus damage removed. Runic Power cost reduced from 40 to 35.
Cataclysm Patch 4.1.0 (2011-04-26): Now deals 130% of weapon damage, up from 110%.
Cataclysm Patch 4.0.1 (2010-10-12): Changed to a Frost Specialization.
Wrath of the Lich King Patch 3.2.0 (2009-08-04): This ability can now be dodged, parried, or blocked. Weapon damage bonus reduced to 55%, down from 60%.
https://wow.gamepedia.com/Frost_Strike