Inundation

Spell Information
Description:	Grants bonus to skillchain damage based on the number of successful melee hits.
Type:	White Magic	Skill:	Enfeebling Magic
Target:	Enemy	Element:
Casting Time:	3 seconds	Recast Time:	20 seconds
Cost:	48MP	Duration:	5 minutes
Range:	21'
Cumulative Enmity:		Volatile Enmity:
Command:	/ma "Inundation" <t>
Scroll:
Scroll Flags:	Obtainable from Goblin Box, Usable inside Mog Garden, Can Use, CanSendPOL, NPC tradable
AH Listing:	➞ Scrolls ➞ White Magic
Spell/Job Level Information
Job	Level	Condition
Red Mage	64	N/A

Notes

• The help text for this spell is inaccurate and misleading. Inundation provides a debuff which makes the target take more damage from skillchains IF different WEAPON TYPES are used in said skillchain. For example a skillchain only consisting of Sword weapon skills will get nothing from this spell whereas a skillchain consisting of Sword, Scythe and Polearm will receive a considerable bonus. SE has confirmed a x1.2 increase per weapon type (Reference below).
  • Including pets, there are 15 total types of weapons, which means that the maximum value that can be reached with Inundation is a 12.8x increase (Reference below).

Further note

There has been some confusion as to how 12.8x increase is attained.

• This is attained from the FINAL WS dmg multiplied by the CURRENT SC strength as displayed in the SC chart (as seen below) then multiplied further by the CURRENT inundation multiplication level being either x1.2 or x2.4 or x3.6 or x4.8 or x6 [dependant on how many different weapons WSs have been used until the final window for any more SCs closes].

So if you pull off all 5 SCs in a row with 6 completely different weapon types and attain a level 2 darkness or light SC on the final SC. you have a DMG + 2.25x + 6x multiplier [This calculation is for the final SC only and all SCs before it are calculated on their own SC/inundation levels](Beaware radiance and umbra SC's modify by a different value and can achieve a higher SC value)

• • So as a example(Current WS dmg (5000dmg) x SC level multiplier 2.25 (current SC dmg 11250) x Inundation level multiplier 6 (67500) = Final SC damage {67500)

So from a 5000dmg WS, instead of getting a 11250 dmg SC, you got instead 67500 dmg SC.

• • • Please be aware other factors must be consider for final SC dmg such as:
• Current SC level and inundation level
• Skillchain Bonus
• Magic Damage
• Skillchain Damage +% equipment.
• Day/Weather Bonuses (can be forced using Obis)
• Staff Affinity
• iLevel/Resistance Damage Bonus
• An absolute dmg cap of 99,999dmg per SC
• Magic Damage reduction/bonuses of the target (like Shell)

and other possible factors

SC chart as reference from SC section of BGwiki

	2	3	4	5	6
Level 1	0.5	0.6	0.7	0.8	0.9
Level 2	0.6	0.75	1.0	1.25	1.5
Level 3	1.0	1.5	1.75	2.0	2.25

References

• EN Dev Post (Camate, OF)
• inundation dmg confirmation(Official FF11 forum)