Who counters Lesion in Rainbow Six Siege?

Twitch, Flores, Ram and Zero. Twitch: drone destroys mines. Clears Lesion's traps. Flores: RCE destroys mines. Ram: BU-GI triggers mines.

Who pairs well with Lesion?

Ela: Mines everywhere. Frost: Mats and Gu. Kapkan: Trapped doors.

Lesion: counters, combos and tips

Q: What does Lesion counter?

Brava and IQ. Brava: mines can't be hacked since Y8S3. IQ: mines are invisible to her detector since Y8S3.

Q: What is Lesion's gadget?

Gu Mine. Cloaked needle mines (up to 9, one more every 25 s) that poison whoever steps on them: 3 damage plus 12 every 2 s until the needle is pulled, and no sprinting while poisoned.

Defender · Ghosteyes · trapper, attrition, light plant delay

Lesion is countered by Twitch (drone destroys mines), Flores (RCE destroys mines) and Ram (BU-GI triggers mines). Lesion counters Brava (mines can't be hacked since Y8S3) and IQ (mines are invisible to her detector since Y8S3). Lesion pairs best with Ela, Frost and Kapkan.

Lesion's gadget: Gu Mine

Cloaked needle mines (up to 9, one more every 25 s) that poison whoever steps on them: 3 damage plus 12 every 2 s until the needle is pulled, and no sprinting while poisoned.

Who counters Lesion?

TwitchHard counterdrone destroys mines. Clears Lesion's traps.
FloresSituationalRCE destroys mines.
RamSituationalBU-GI triggers mines.
ZeroSituationalArgus laser destroys mines.

What does Lesion counter?

BravaSituationalmines can't be hacked since Y8S3.
IQSituationalmines are invisible to her detector since Y8S3.

Best Lesion combos

ElaMines everywhere.
FrostMats and Gu.
KapkanTrapped doors.

Lesion myths

Thatcher or IQ counter Lesion. Gu Mines have been mechanical since Y8S3.

Key Lesion facts (Y11S3)

A Gu Mine sticks a needle in the attacker: 3 damage, then 12 every 2 s until removed, and no sprint. Pulling the needle takes a couple of seconds with the gun lowered. Lesion starts with 1 mine and gains one every 25 s, up to 9. (since current (5.1.0 rework and later))
A poisoned defuser carrier can't drop or plant the defuser until the needle is out.
Gu Mines became MECHANICAL in Y8S3 (Heavy Mettle): IQ can't see them and Brava can't hack them. (since Y8S3)
Twitch's drone, Zero's laser, Flores's RCE, Kali's Lance, gunfire and explosives destroy Gu Mines, and Ram's BU-GI triggers them in its path.

Sources

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