What weapon does Cenotaph Mask need?

A Trace Rifle. The reload and marking effects apply to the equipped Trace Rifle.

Who gets the Heavy ammo?

Your allies. When one of them defeats the marked target, they receive Heavy ammo and you receive Special ammo.

Where does Cenotaph Mask come from in the game?

Exotic Armor Focusing is the source the game data gives for it, and Bungie describes Exotic Ciphers as usable for focusing Exotics at the Cryptarch.

Cenotaph Mask – Warlock Exotic Helmet

Name: Cenotaph Mask
Brand: Onlyfarms
SKU: db34312db298e082d5824c54
Price: 11.33 EUR
Availability: InStock
Rating: 4.8 (151893 reviews)

Key facts

Item type	Exotic helmet
Class	Warlock
Exotic perk	High Priority
Perk effect	Slowly reloads the equipped Trace Rifle from reserves; Trace Rifle damage marks vehicles, bosses and Champions, and an ally kill on a marked target gives you Special ammo and allies Heavy ammo
Weapon hook	Trace Rifle
Source in the game data	Exotic Armor Focusing; the game data marks it "Requires Destiny 2: Lightfall"
Armor stats	Weapons, Health, Class, Grenade, Super and Melee

Item type

Exotic helmet

Class

Warlock

Exotic perk

High Priority

Perk effect

Slowly reloads the equipped Trace Rifle from reserves; Trace Rifle damage marks vehicles, bosses and Champions, and an ally kill on a marked target gives you Special ammo and allies Heavy ammo

Weapon hook

Trace Rifle

Source in the game data

Exotic Armor Focusing; the game data marks it "Requires Destiny 2: Lightfall"

Armor stats

Weapons, Health, Class, Grenade, Super and Melee

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