Destiny 2‘s new Stasis grenade launcher, Liturgy, is a fairly remarkable breech-loader for a couple of reasons. First, the Episode: Revenant weapon is one of the few Double Fire archetype launchers, which means it fires two grenades at a time instead of one for double the explosive power. Second, it goes in your primary weapon slot and is imbued with Stasis, an element that is highly in vogue thanks to boosts coming from the Revenant artifact. And finally, the excellent perks in its god roll synergize beautifully with Stasis and Prismatic builds, as well as other Stasis guns, to provide some big benefits.
How To Get Liturgy
Like the other Revenant weapons, the primary means of getting new versions of Liturgy is by playing Onslaught: Salvation, the new activity that launched as part of the episode. Liturgy can drop as a random reward as you complete waves of Onslaught: Salvation, so there’s a chance you’ll get it whenever you open a chest. You can increase that chance by crafting a Liturgy Enriching tonic, which will “attune” your rewards so you’ll get Liturgy more often. The potion lasts for 20 minutes, but you’ll have to unlock the recipe in order to use it–check out our Tonics guide for more info on how to do that.
You’re also guaranteed to earn a Liturgy as a reward for completing Revenant Act 1 story quests, so make sure to bang those out as well.
Source: Gamespot Destiny 2 Liturgy God Roll Guide – Best Perks And How To Get It