How to get Extreme Weapons and units?

[sesiom000]

Hi, i wanted to know how players manage to get those extreme units and weapons?
Whats the best way to farm crystals?

[jooozek]

they pay millions of meseta for people using their passes for them and run with shitloads of rare drop rate boosts

[ashley50]

And luck.

[GreenArcher]

Extra accounts at lv50 to harvest more passes works as well.