Prismatic Cloak (mage talent)

Prismatic Cloak is a Mage talent in the Arcane tree that reduces all damage taken by 2% per rank, up to 6% at max rank. This talent applies to all damage, magic and physical, making it a nice survivability talent.

Its most notable effect however is the effect it has on Invisibility, turning the spell instant at maximum rank which is a massive increase to Arcane survivability in PvP settings. For this, it is considered a required talent in any serious Arcane PvP build.