OCTOBER 14, 2025 UPDATE: Unstable Cores will be deprecated in a future update. Once retired, infusing gear above 200 will require enhancement cores and glimmer.
OCTOBER 14, 2025 UPDATE: Unstable Cores will be deprecated in a future update. Once retired, infusing gear above 200 will require enhancement cores and glimmer.
OCTOBER 14, 2025 UPDATE: Unstable Cores will be deprecated in a future update. Once retired, infusing gear above 200 will require enhancement cores and glimmer.
You can get them by dismantling post-200 gear.

General Information
Breakdown of The Portal System
Every Power Enabled activity falls into one of five difficulty tiers or one unique mode:
| Tier | How to Master |
|---|---|
| Normal | Focus on growing your Power level. |
| Advanced | Optimize your individual buildcrafting for Nightfall-style gameplay, while still matchmaking with other players. |
| Expert | Optimize your fireteam composition and rely on your ability to work together as a team. |
| Master | Optimize your execution, leveraging the skills built by engaging with other tiers of difficulty. |
| Grandmaster | Tie it all together and demonstrate true mastery to overcome pinnacle challenges in Destiny 2. |
| Contest Mode | A unique, limited-time challenge where each raider will have to demonstrate their gameplay. In this mode, Fireteam Power will not apply. |