Suggestions for Priest Reworks/Buffs

[Mec]

I have a level 12 priest and a level 12 shadow priest and I think the priest would benefit from some changes that would make it better in larger parties and also more engaging to play.

Heal

Current: (4/5/6/7/8) mana to heal a target for (10/15/20/25/30) with no CD.
Proposed: (20/30/40/50/60) mana to heal a target for (45, 90, 135, 180, 225) with a 4 second CD.

Inner Fire

Current: (35/45/55/65/75) mana to give a single target (10%/15%/20%/25%/30%) damage and (3/5/7/9/11) armor for 60 seconds.
Proposed: (100/100/100/100) mana to give ALL allies around you (3%/6%/9%/12%/15%) damage and (2/3/4/5/6) armor for 600 seconds.

Light of Quel'Thalas

Current: (65/95/125) mana to heal all targets in an area for (100/165/230) with 35 sec CD.
Proposed: (45/75/105) mana to heal all targets in an area for (40/80/120) with 15 sec CD.

I think these changes would bring priest in line with shadow priest and would also make priest more fun to play, because you'll be able to cast more often and there's more incentive to train and use inner fire.