Offertoriumhttps://irowiki.org/wiki/Offertorium

Offertorium (Alt: Oper Auditorium) is a 3^rd class active skill available as Arch Bishop.

Effect

Increases the efficiency of High Heal, Coluseo Heal, Sanctuary, and Heal at cost of increasing SP Cost of all skills. It also purges the user of a few status effects. This skill cannot be used in conjunction with Magnificat.

Level	Efficiency Increase	SP Cost Increase	Cast Time	SP Cost
1	30%	120%	5s	30
2	60%	140%	4s	60
3	90%	160%	3s	90
4	120%	180%	2s	120
5	150%	200%	1s	150

Use Magnificat to control the usage for this skill when player doesn't need to cast Healing Skills and suffer large SP Cost.
Best combo usage with Sanctuary, especially on Level 7. Cast Sanctuary first then this skill to negate the SP Cost increase.

Priest • High Priest • Arch Bishop • Cardinal
2nd Class Skills	Aspersio • B.S Sacramenti • Gloria • Impositio Manus • Increase SP Recovery • Kyrie Eleison • Lex Aeterna • Lex Divina • Mace Mastery • Magnificat • Magnus Exorcismus • Redemptio • Resurrection • Safety Wall • Sanctuary • Slow Poison • Status Recovery • Suffragium • Turn Undead
Transcendent Skills	Assumptio • Basilica • Meditatio • Spiritual Thrift
3rd Class Skills	Adoramus • Ancilla • Cantocandidus • Clearance • Clementia • Coluseo Heal • Convenio • Duple Light • Epiclesis • Expiatio • Full Throttle • High Heal • Judex • Lauda Agnus • Lauda Ramus • Offertorium • Oratio • Praefatio • Renovatio • Sacrament • Silentium • Vituperatum
4th Class Skills	Arbitrium • Argutus Telum • Argutus Vita • Benedictum • Competentia • Dilectio Heal • Effligo • Fidus Animus • Framen • Mace & Book Mastery • Mediale Votum • Petitio • Pneumaticus Procella • Presens Acies • Religio • Reparatio
Quests	Priest Job Change Guide • Priest Skill Quest • Rebirth Walkthrough • Arch Bishop Job Change Guide • Fourth Class Job Change Quest Skip • Cardinal Job Change Guide
Weapons	Book • Mace • Rod