Here my idea for mana regeneration that could replace the remova of Spiritual Attunement:
Talent in tier 8 (3/3)
"Gives the paladin a (33/66/100%) chance to immediately grant him/her 2% of maximum mana after dealing a critical strike from weapon swing, spell or ability. It also decreases the cooldown of Exorcism by (1/2/3) sec."
With this talent, obviously the Glyph of Seal of Blood should be changed in something that increases our sustained damage for example:
Glyph of Seal of Blood :
" increases total damage done by 2% while Seal of Blood/of the Martyr is active" or " increases the damage done by your Seal and Judgement of Blood/of the Martyr by 5%"
With these changes we could obtain : more sustained damage (exorcism 12 second cooldown, Glyph of Seal of Blood) and more mana regeneration.
So we could regenerate mana from :
1)Judgement of the Wise
2)Judgement of Wisdom
3)Divine Plea
4)Replenishment
5)2% of maximum mana from every crit
+ Lay on Hands and/or Glyph of Divinity, Seal of Wisdom, Blessing of Wisdom ,Innervate, Mana pots
What do you think about it?