Suomi is an Evasion self-buffer SMG, with a reasonable uptime and acceptable multiplier.

While pre-Mod Suomi does increase her survivability through her Skill, she is not recommended until you Mod her. Simply use RO635 who is given for free from Story Chapter 7-6 until you get Suomi to Mod1.

Check the mod priority guide: https://docs.google.com/spreadsheets/d/1ty239kyJbBs1sLhTo1JvSWuN0mIJsK1nwVdI6OLLtXo/view?rm=minimal

So Suomi has quite the MOD. Quite the excellent and outstanding MOD in fact. The sort of upgrade that only makes her pretty much the best SMG in the entire game.

So what’s so amazing here? The main thing is, Suomi MOD’s raw survivability is outstanding. A large part of this actually comes from her upgraded Skill 1, which is a rarity among MODs. When Cover Focus activates, she will now grant herself a 165 HP Shield that lasts until it is broken and even removes any multiplicative debuffs she may have on her or even receive while Cover Focus is active, effectively making her debuff immune. To top it off, that same shield gives a whopping 35% Damage reduction. In case you want even more shields, her Skill 2, Snowfield Wraith, will give her even more shields. Suomi’s overall tankiness surpasses that of even Alchemist.

Skill 2 in itself is very wordy but quite simple in practice. Suomi now shoots randomly, basically changing her target constantly. This is actually a good thing, because all her shots now apply a stack of Chill regardless if it hits. Every 4 seconds, every Chill stack will be consumed which will damage the enemy and give them various debuffs. The damage is a flat 10% of their current HP, capped at 100000 HP (don’t worry much about this cap, only some of the newer bosses will actually be able to reach it). Most importantly though, each Chill stack consumed gives a 4 HP shield. This shield works alongside the bigger shield from Skill 1, and even activates the damage reduction if Skill 1’s shield is currently down.

With almost permanent shield uptime, it’s easy to see why Suomi has ascended to the top of the SMG hierarchy. She requires so little effort from your part, giving you so much in return. There’s no fancy bells or whistles to how she works, she keeps up all her own shields and protects everyone else while doing so. MOD2 is where she reaches the apex of her survivability, but even MOD1 is a strong upgrade if you’re currently low on resources.