How to evolve Zweilous in Cobblemon.
Zweilous evolves into Hydreigon when it reaches level 64.
Evolution line
What Zweilous needs
1 path
HydreigonLevel up
Level 64
Is it worth it
Zweilous nowdarkdragon420
Hydreigondarkdragon600
Base stat totals, from the Cobblemon 1.7.3 species files.