Ctrl K
Reshape Osteo Striga with the catalyst inserted.
Sweet Business CatalystDefeat enemies in groups of four or more while using Sweet Business.Sturm CatalystDefeat enemies while both Sturm and Drang are equipped.Vigilance Wing CatalystDefeat Guardians in the Crucible with Vigilance Wing and earn Blood for Blood medals by avenging fallen teammates.Rat King CatalystDefeat enemies using Rat King.
Only Rat King PvE kills by fireteam members will advance the objective.MIDA Multi-Tool CatalystDefeat Guardians in the Crucible by landing precision final blows with MIDA Multi-Tool.Crimson CatalystDefeat enemies by landing precision final blows with Crimson.Jade Rabbit CatalystDefeat Guardians in the Crucible using Jade Rabbit.Huckleberry CatalystDefeat enemies using the Huckleberry.SUROS Regime CatalystDefeat Guardians in the Crucible using SUROS Regime.Cerberus+1 CatalystDefeat enemies using Cerberus+1.Ace of Spades CatalystDefeat enemies using Ace of Spades.Izanagi's Burden CatalystDefeat combatants using Izanagi's Burden.Outbreak Perfected CatalystLand precision final blows using Outbreak Perfected, or apply the catalyst to the shaped version of Outbreak Perfected.Bad Juju CatalystDefeat combatants using Bad Juju.Lumina CatalystHeal allies with Noble Rounds using Lumina.Witherhoard CatalystDefeat combatants while using Witherhoard.Hawkmoon CatalystDefeat combatants using Hawkmoon.No Time to Explain CatalystDefeat combatants using No Time to Explain.Dead Man's Tale CatalystDefeat targets using Dead Man's Tale, or apply the catalyst to the Shaped version of Dead Man's Tale.Cryosthesia 77K CatalystDefeat combatants using Cryosthesia 77K.Traveler's Chosen CatalystDefeat targets while using Traveler's Chosen.Ager's Scepter CatalystDefeat combatants with Ager's Scepter to unlock this upgrade. Precision defeats grant increased progress. Destroying destructible walls in the Shattered Realm activity grants significantly more progress.Forerunner CatalystDefeat combatants while using this weapon to unlock this upgrade.Arbalest CatalystDefeat combatants while using Arbalest.
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