This week commencing 24 May 2021, buy Werebat in the shop for glory.
(If you are reading this after the fact - find Werebat or any subsequent troops that produce lycanthropy gems, use filter in troops).
Unlock all three traits. You need trait #3 - Lycanthropy.
Add to your fast Explores team, or your fastest team in general (I used Sunbird / Werebat / Firebomb / Firebomb).
Do D1 explores (anywhere really).
Werebat has 50% of making Lycan gem each turn.
Match away. Probably faster to finish games than struggle to get hard to reach ones, as you will have many opportunities. Plus you will trait stone farm too :)