well people been trying to think of ways to get the cata versions back but updated for awhile now
from cata
Frost Presence
Strengthens you with the presence of Frost, increasing damage by 10% and increasing Runic Power generation by 10%. Only one Presence may be active at a time, and assuming a new Presence will consume any stored Runic Power.
improved frost pres rank 2
Increases your bonus damage while in Frost Presence by an additional 5%. In addition, while in Blood Presence or Unholy Presence, you retain 4% increased Runic Power generation from Frost Presence.
since we got a better thing with runic regen with all the RP we spend
it could grant razerice to all of our attacks while improved has a higher km and rime rate
it also make runic emp refresh all runes on cd
Unholy pres
You are infused with unholy fury, increasing attack speed and rune regeneration by 10%, and movement speed by 15%, and reducing the global cooldown on your abilities by 500.1 sec. Only one Presence may be active at a time, and assuming a new Presence will consume any stored Runic Power.
Improved Unholy Presence Rank 2
Grants you an additional 5% haste while in Unholy Presence. In addition, while in Blood Presence or Frost Presence, you retain 15% increased movement speed from Unholy Presence.
Blood Presence
You assume the presence of Blood, increasing Stamina by 8%, armor contribution from cloth, leather, mail and plate items by 55%, and reducing damage taken by 8%. Increases threat generated. Only one Presence may be active at a time, and assuming a new Presence will consume any stored Runic Power.
Improved Blood Presence Rank 2
Increases your rune regeneration by 20% and reduces the chance that you will be critically hit by melee attacks while in Blood Presence by 6%. In addition, while in Frost Presence or Unholy Presence, you retain 4% damage reduction from Blood Presence.
improved presences rank 1 could also kill 50% of stored RP and rank 2 doesnt letting you switch freely