Originally Posted by DeathsSilkyMist
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I agree that groups of 5 or 6 people generally suck for XP. People have known that for years.
We can do some basic math. Fungi Tunic reduces average DPS by 15 HP / 6 seconds (1 Tick) = 2.5 DPS.
When you are fighting lower level mobs that do 5 DPS, Fungi Tunic is reducing the DPS you take by 50%. That is obviously huge. This is why Fungi Tunic is so broken at lower levels.
When you are fighting higher level mobs that do 30 DPS, Fungi Tunic is reducing the DPS you take by 8.3%, which is much smaller. That is the downside to Fungi Tunic as a defensive item. Mob DPS increases as you level, while Fungi Tunic DPS reduction remains constant.
AC reduces more damage at higher levels, due to mobs dealing more damage. This is talking about normal mobs, not something like AoW that generally doesn't care about AC.
If you look at a Ratfink in PoM, this is it's damage table:
[28, 33, 38, 44, 49, 55, 60, 66, 71, 77, 82, 88, 93, 99, 104, 110, 115, 121, 126, 132]
Unslowed mobs get 1 attack per 2 seconds, and from my understanding have roughly a 50% chance to double attack when they are in their 40s. This means on average the mob will attempt to hit you 45 times, with a miss rate of 50%. So you'll be taking roughly 22 hits per minute. Last time I checked I think my SK was preventing roughly 10% of all hits with dodge, parry, and riposte. So you'll get hit around 20 times per minute via a Ratfink.
I don't have the numbers to guarantee this is the case, but if the extra 24 AC from Vindi BP is reducing the damage roll you'll get by 1 on average, this means you'll be saving 5 or 6 damage per hit. 5.5 x 20 = 110 HP per minute, and you get 20 HP per minute from AoB. That means Vindi BP is saving 130 HP per minute on average compared to 150 HP per minute via Fungi Tunic at higher levels. If you get healed to full once every 7 minutes, you'll get that 20 HP difference back due to Vindi BP giving you 150+ max HP.
It's pretty easy to see that Vindi BP will generally at least break even with Fungi Tunic when it comes to damage reduction while tanking non-caster mobs. Additionally, it can reduce more damage as well if the extra AC reduces the damage roll by more than one, or if you get healed to full more often than once every 7 minutes. With casting mobs you'll see an even larger gain with Vindi BP, as you are increasing the chances of reducing or nullifying damage from a spell. Levels 50+ you are more likely to run into casters, and casters at higher levels tend to have decent damage on their spells.
If you are slowing most mobs, then Fungi Tunic gets better in some cases. This is because you'll reduce 30 DPS down to 10 DPS, which means Fungi Tunic is now reducing DPS by 25%. The main thing people forget to take into account when dealing with higher level mobs is damage spikes. If a mob gets lucky and happens to double attack twice for 132 damage in 8 seconds, you've now gotten nuked for 528 damage. Fungi Tunic will only reduce 15 of that damage in that 8 second timeframe. Extra AC could reduce the damage rolls on multiple max hits, saving you potentially 100+ HP. Depending on how many mobs are attacking you, and how much HP you have remaining, that could be the difference between life and death when waiting for a heal to come in. That is the other downside to Fungi Tunic. It cannot soak a lot of damage in a short time frame during damage spikes, where AC and Resists can.
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