i have a question about gjallarhorn

The main way is by trading familiars in the Bazaar, Gjallahorns are the standard currency in the Bazaar. By trading the familiars you get from events, free pacts and/or any paid pacts you can earn Ghorns.

You can trade your cards for them at the bazaar, other than that, no other way.

1. Buy them

2. Chance to get them while adventuring

3. Trade for them

This game is very expensive if you want to play any events

Before they removed tradable resources from chests, it was possible to save resources and play the bazaar for profit and save up for events and L runs.

Now, it is hard to impossible to do that