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Nov 01

There’s one side-effect of the game mechanics changes in 3.0.2 and the new spells in Wrath that many people haven’t realised: Intellect is now the primary regen stat for raiding holy Paladins.

This comes from two sources of regen that are based on total mana:

Divine Plea
This is the new paladin spell at level 71; it restores 25% of your total mana over 15 seconds with a 1 minute cooldown (and a debuff to healing done).

Replenishment
This is the new raid regen buff granted by Shadow Priests, Retribution Paladins and Survival Hunters. It “causes up to 10 party or raid members to gain 0.25% of their maximum mana per second” whenever the priest, paladin or hunter uses a particular ability.

Doing the Math
To see how these balance out against mp5-based regen, let’s look at the value of 500 Intellect. 500 Intellect is worth 7500 mana, which means Divine Plea can return up to 1875 mana per minute, equivalent to 156.25 mp5. 7500 mana also allows Replenishment to return 18.75 mana per second, equivalent to 93.75 mp5.

500 Intellect therefore gives 250 mp5, assuming you have constant Replenishment uptime (which is not a given; it depends on the composition of your raids, and your Replenishment buffers’ ability rotations) and that you use Divine Plea on every cooldown.

However, looking at the item value of Intellect vs mp5, 500 intellect only costs you 80% of the itemisation budget of 250 mp5, meaning that if you have ready access to Replenishment, Intellect is ‘cheaper’ than equivalent mp5 for regen.

What if you don’t have ready access to Replenishment? What if your raid only has one shadow priest and no ret pallies or survival hunters, and you’re fighting with 15 other mana users for Replenishment? Well, most of the regen value of Intellect is from Divine Plea; as you can see from the numbers above, you only need a 47% uptime or better on Replenishment for Intellect to become better itemisation value than mp5.

Illumination
This fact is even more true for Holy paladins, who get spellcrit-based mana return (when healing) from Intellect.

From combat ratings calculations by Whitetooth at Elitist Jerks, and using the example above, 500 Intellect at level 80 gives 3% Spell Crit. The value of this in terms of mp5 is hard to calculate, because it depends greatly on your spell rotations in a level 80 raid – but it’s certainly a significant boost to spell throughput and mana return, which just strengthens the value of itemising for Intellect rather than mp5.

In a very, very rough estimate of modelling the effect of spell crit at 80: assuming a ratio of 60% Flash of Light, 20% Holy Light and 20% Holy Shock, and that you’re chain-casting, 3% spell crit returns mana equivalent to approximately 33mp5. If you incorporated this into the numbers above, you’d only have to have Replenishment 12% of the time instead of 47%. Obviously, this is highly variable depending on your casting rotation and frequency.

The Bottom Line
Assuming you can use Divine Plea on every cooldown, and have at least some access to the Replenishment buff, gearing for Intellect is a stronger option than gearing for mp5.

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3 Comments

Comment by Andris

Made Monday, 3 of November , 2008 at 1:27 am

You actually missed a few things that make intellect even better….

If you have 500 intellect on gear, you’ll actually get 575 intellect through Divine Intellect — that will be an extra 0.5% crit, and 1125 mana.

Additionally, you’ll gain about 115 spell power via Holy Guidance, which will up your throughput a bit, or allow you to get by with 2 FoL instead of a HL.

Comment by Ursuron

Made Monday, 3 of November , 2008 at 8:56 am

Good thing we’ve got 10 levels to re-itemise :)

Comment by khassad

Made Monday, 3 of November , 2008 at 6:49 pm

In my opionion Intellect was a very important stat also before patch 3.0.2. In fact I always used (and still use) Pendant of Violet Eye (+40 int) on my HolyPally.

Optimizing for intellect means optimizing two-fold for illumination: directly through crits, indirectly through manapool (bigger manapool = you can cast more spells = you can crit more).

Moreover the active mana-regen given by Illumination scales with haste, because haste allows you to cast faster and so crit more often (in chain-casting situation).

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