Trade Crests Up Into Higher Tier Versions in Patch 10.2

wowhead.com:

In this week's PTR build, we believe we've discovered the mechanism by which players will be able to trade up lower tier crests into higher level versions, using new consumables containing 15 Wyrms, Drakes, or Aspects Crests used for upgrading gear in Dragonflight Patch 10.2.

Each bag contains 15 crests, which under the new system is enough for one upgrade (e.g. from Hero 1/6 -> Hero 2/6).

Alongside several other changes to the Upgrade system, Blizzard already confirmed that players would be able to trade crests up into higher tiered versions in Patch 10.2, with a minimum item level requirement for each bracket — essentially the point at which the previous crest would no longer be useful.

However, we don't yet know what other restrictions there may be, or the exact conversion price from one tier to the next. That said, being able to trade up at all is still a great change that allows lower tier activities to still be rewarding and contribute to reducing the amount of higher end activities that a player needs to farm.

• Hero upgrade track increased to 6 (was 5).
• Myth upgrade track increased to 4 (was 3).
• Crests are now a currency and will no longer take up inventory space.
• Fragments have been removed.
• Crests can now be traded up for higher-level Crests once reaching the lower level Crest’s item level or higher.
  For example: Using Season 2 item level numbers, players would become eligible to trade their Whelpling Crests up to Drake Crests when every gear slot had reached item level 411 or higher. Trading up to Wyrm Crests would become available at 424 (again, in every gear slot, using the same rules as crest redundancy), and trading up to Aspect Crests would open at 437.