Understanding Iris’s Math Guide
By kaiton.
TLDR
Iris’s buff stacks additively with other active buffers like ruin/gildong, which makes her a strong buffer in early game when your se is still low but useless late game as you grow your se (late game, gildong can buff 50x+ even for f2p). The new constellations reduce the gap between onboard vs. frontline, which makes Iris’s buff relatively stronger (from 6x to 12x at equal trans and gears without other active buffers). She’s godly in farming due to her ability to share her ATK stats, which means you can gear her ATK while gearing the rest of your team more gold and there’s no down time for her buff. This allows you to farm higher stage with more gold %.
Iris’s Math:
- Let A = total ATK power of your main dps (e.g. ungula). This is inclusive of all the multipliers, passive buffers, and mael’s buff.
- Let B = ATK bonus from Iris = Iris’s ATK x Iris’s passive multipliers (inclusive of the 100% from active and 500% from ex-weapon)
At same level, trans, and gears, Iris’s ATK is about 16x lower than Ungula’s ATK before new constellations (6.9x after new constellations) due to lower ATK mult, ATK amp, and constellations. If your main dps is stronger, then Iris’s ATK will be even lower relatively.
If Iris and Ungula are both T1 lv210, Iris’s passive multiplier+active+ex = 8600% or 86x.
This means if A=1, B=86/16=5.4. Ungula will now have total ATK power of 1+5.4=6.4 or 6.4x of the original. In essence, Iris buffs 6.4x in absence of ruin/gildong. This is great for farming since you don’t need to use ruin/gildong.
But when used with ruin/gildong, the buffs stack additively and is greatly diluted.
Total ATK = ATKx(Ruin’s buff + Iris’s buff) = 1x(50+5.4) = 55.4, which is only 10.8% gain over not using Iris. Soba as a 6th slot would get you +50%, which is much better.
Would equipping full BDMG gears on Ungula and full ATK on Iris work in boss fight?
- No, because the gain from BDMG (maybe around 2x) and together with Iris’s buff, that’s 11x total at best, which is far short of the 50x from ruin/gildong, so Iris will never replace ruin/gildong. Also, remember that ruin/gildong multiplies on main dps’s ATK only, so if you gear your main dps with BDMG, then there’ll be much less ATK to multiply if you decide to use Iris together with ruin/gildong.
Where is Iris useful?
- Iris is very good at farming because equipping her full ATK means you can equip your Jib and Ungula with more gold instead. Why does this work? Because remember that Iris’s buff is 5.4x to ungula’s 1x, meaning that Iris’s portion represents 5.4/6.4=84% of max total ATK power. This means you can gear ungula with 0 ATK and you’ll still have 84% of what you’d have if you’d geared ungula with full ATK. Very efficient.
Ideal farming team with Iris:
- Jib, Ungula, Iris, mael, valentine, Louis (if 5 slots, take out mael).
- Use knockback cannon+squeak droids or cog wheel or wrench.
- Farm a safe stage like 32, 52, 72, 92 or 38, 58, 78, 98 where violet tanking isn’t required.
- Gear Iris full ATK everything. Gear all other ex weapons with gold red stat and gold/gold trinkets with max gold rolls. As for runes, best runes for Jib/Ungula would be ATK fixed stats with gold red stats. I roll for 1200% ATK on their runes but you could also go with gold. Everyone else full gold everything.
- Pro tip: you can easily raise enough rec for infinite wrench by removing fort’s hp constellations and equip engines with rec stats while making sure there’s no HP stat.
- If you want to farm higher but don’t have enough power, you can also try putting in Gildong instead of mael/valentine. This will result in lower kpm due to Gildong’s down time but you can farm higher.