That's not necessarily true, with my gear spiritual atunnement gets a draw with blood ritual in terms of mana autonomy using bears, spiritual attunement also have more sinergy with Honored guest than blood ritual, but i use blood ritual because the life regeneration.
If you have more base mana than i have(977), spiritual attunement becomes better than blood ritual for bears spamming.
Let me show the math i am using:
Zombie bears cost: 140
Zombie bears cost with blood ritual: 119
My base mana: 977
My base mana regeneration: 104
Base mana With spiritual attunement: 1172
Base mana regeneration with SP:115,69
My Attack speed: 1.53
Mana consumed per second with blood ritual:182,07 - 104= 78,07 per second.
Time of spamming until OOM: 977/78,07= 12,51 seconds
Mana consumed per second with spiritual attunement: 214- 115,69= 98,31
Time of spamming until OOM:1172/98,31= 11,92 seconds.
Blood ritual wins just barely in my case, but considering that spiritual attunement works better with Honored guest,grave injustice and gruesome feast, we could say we have a technical draw.
Edited by Carlucio#1777 on 11/26/2012 7:30 AM PST