No because it returns shortly after you cancel it iirc.
Sorc ring hp with cruor hp buff active, pro : when ***hits the fan you can get cure bombed back to 2k hp, con : your hp will show orange?red? with it active and would be very hard for mage not to wanna cure you soon as they see it drop.
Sorc ring hp without cruor hp buff, pro : can nuke and keep hp white or just into yellow at the very worst, con : max hp obviously however fully buffed in abys 816hp as hume blm besides from ??? needles I dont think Ive ever been killed where ive felt having more max hp would of helped much.