Legendary Cards

Hi ppl

How do I get a legendary card?
I tried to craft, but it says “you can´t create legendary cards”…

Find them in chests.

Yep get them from Battle Chests, you can also purchase a “one time only” deal from the store for £9.99. It will give you £9.99 worth of gems + a mythic chest and 1 random legendary you do not own.