Poison Mist (CoT2) - MapleStory Classic World F/P Mage skill

Read from the Closed Online Test 2 client, pulled 12 August 2026.

CoT2: From Closed Online Test 2 (Beta 2). Not in the Public Release; kept here as a record.The Public Release has no 3rd job. Poison Mist is kept from Closed Online Test 2 with every rank as the test had it, so what this page says is the test’s, not the live game’s. What the release removed

Summons a poison mist at the location of the nearest monster in front that lasts for 5 seconds. Enemies within the poison mist area have a certain chance to become poisoned for a certain period of time. Deals increased damage to poison-weak enemies, but deals reduced damage to poison-resistant enemies and cannot poison them. Cooldown: 15 sec

Available the moment you advance.

Every rank1 target

Element: Poison; what the client tags this cast as
Cooldown: 15 sec; before you can cast again
MP at max: 50; up from 35 at rank 1

Rank by rank

30 ranks

Rank 30 / 30maxed

MP -50, Summons a poison mist that lasts for 5 sec, Attack Range 200%, 100% success rate, deals 170 Basic Attack over 5 sec

MP: 50
cooldown: 15 sec
chance: 100%

What ranking it up buys

One row per number that moves rank to rank: what it is at rank 1, what it is at the last rank, and the difference. The track marks every rank at its own place between the two, so a skill that does most of its work in the first few ranks looks like one - and several do.

Every figure comes off the client’s own level rows rather than out of the tooltip sentence, so a rank the client is silent about is a gap here rather than a guess.

Chance70%100%+30% over 30 ranks

Damage over time110170+60 over 30 ranks

MP a cast3550+15 over 30 ranks

Cooldown15 secthe same at all 30 ranks - the points here buy something else, or nothing

Monsters1the same at all 30 ranks - the points here buy something else, or nothing

Hits1the same at all 30 ranks - the points here buy something else, or nothing

What it rolls

Poison Mist has no damage roll of its own.

Nothing on its level rows is a damage or healing figure, so there is nothing to break down. What it changes is elsewhere on this page - and a buff with no roll is not a gap in the data, it is the answer.

Closed Online Test 2 to Public Release

Each diff was generated on its own date and the rest of the snapshot was synced later, so a change made between the two would not appear here. Where they disagree, the rank rows above are the newer read.

CoT2: From Closed Online Test 2 (Beta 2). Not in the Public Release; kept here as a record.Removed in the Public Release; this page shows the skill as Closed Online Test 2 had it.

Closed Online Test 1 to Closed Online Test 2

Poison Mist is new in Closed Online Test 2. It did not exist in Closed Online Test 1, so there is nothing to compare it against.

The rest of the F/P Mage book

How long a cast takes. The client ships a frame timing for every action, but the game scales an action by the weapon’s attack speed and the rule that does it is not in the export. So nothing here is milliseconds of real cast time, and nothing on this site prints damage per second.

How the search steps. The box says what area a cast catches, and three things about how it is searched are on no row anywhere: where the search starts, relative to your feet; the step it moves in, if it steps rather than sweeps; whether a wall or a platform edge stops it. Drawing them would mean taking somebody else’s reverse engineering of the client and presenting it as ours.

Whether it can be cast in the air, and what a monster’s defence does to the roll. No cast-position column exists, and the roll above is the number before anything on the other end is applied.

And all of it is Closed Online Test 2's: the Public Release does not have this skill.

Elemental ResistanceCoT220

Element AmplificationCoT230

ExplosionCoT230

Poison MistCoT230

Element CompositionCoT230

SealCoT220

Spell BoosterCoT220