Chongyun

Chongyun

4★CryoClaymoreSupport

TL;DR

Chongyun's Skill leaves a frost field on the ground that turns sword, claymore and polearm attacks into Cryo for as long as the character stands in it. His Burst is three falling blades of Cryo damage. Skill, Burst, swap to your melee carry, fight inside the circle.

Rotation

  1. Skill (E) on top of the enemies. A ring of frost settles a moment after the explosion.
  2. Burst (Q). Three blades drop one after another.
  3. Swap to your melee damage dealer and fight inside the ring. Their weapon glows Cryo while they're in it.
  4. Come back in 15 seconds for the next field.

Abilities

Skill (E) 15 second cooldown. An area Cryo explosion, then a field that lasts 10 seconds. Sword, claymore and polearm characters inside get their attacks infused with Cryo plus 8% Normal Attack speed. When the field expires, one more blade falls and cuts the Cryo resistance of whatever it hits by 10% for 8 seconds.
Burst (Q) 40 Energy, back in 12 seconds. Three giant blades drop one by one for area Cryo damage. They throw enemies into the air as they land.

The one mechanic to understand

The field infuses melee weapons and nothing else.

For a sword, claymore or polearm carry the ring turns their entire attack string Cryo, which is the reason to bring him at all. A bow or catalyst character gets the attack speed and walks away with nothing else. The infusion sticks to the character rather than the ground, lasting 3 seconds after they step out, so a carry who has to chase something around does not lose it the instant they leave.

What actually matters

The two or three real decisions. Everything else is noise.

  • A melee carry in the team. The infusion is the character. Without one you brought a cheap Burst.
  • Energy is nearly free here. 40 Energy on a 12 second cooldown, so around 130% Energy Recharge covers it.
  • The Burst launches things. Small enemies get thrown out of your carry's reach, which is worth knowing before you press it in a crowded room.

Gear

A build that works. KeqingMains lists every other option.

Weapon Energy Recharge. Sacrificial Greatsword is a standard banner 4-star that now and then refunds the Skill outright, which is a second field.
Artifacts 4-piece Noblesse Oblige. He casts his Burst constantly, so the party picks up 20% Attack for nothing.
Main stats Energy Recharge sands, Cryo damage goblet, Crit circlet.

Works well with

PyroElectro

Pyro if your carry is the one melting things. Electro for Superconduct, which shreds Physical resistance for a Physical carry standing in the ring.

Don't bother

  • Bringing him for a bow or catalyst carry.
  • His own attack strings. The field is for somebody else to stand in.
  • Attack speed stats. The 8% comes off the talent and has nothing to do with your build.
  • Precise placement. It appears where he swings and covers plenty of ground.

Want the full theorycrafting version? Read Chongyun on KeqingMains.