What's the best place/method to farm realm fragments?

running real low thanks to Stellar Gold, and it feels like it takes forever for them to drop. I've been joining Merciless parties on Parallel Realm*, and I can go a dozen runs with barely any fragments encountered.

*I'd try elsewhere, but there's not usually a ton of high-difficulty parties outside of PW to join, and I certainly can't do it myself yet.

Is Parallel World the wrong place to look or am I just unlucky or am I misremembering how uncommon drops are because I've never run low before?

also, is there a vendor that sells realm fragments somewhere? or any other way to get them?

 

For get realm frags you can :
- do the Thabo's daily quest (collect 50 sky stones) to get a portal. Take the second quest (kill 550 red-fur) at Thabo'shop and go in Quartz Cavern. You need 5 portals to finish the quest in mercy.
But to have a lot of frags, go with a team of 5 players.
Before you need the rune of the realm changer in legendary (+5) and put (+5) in Skills group : that gives you +10 frags when you are in a team. There are often teams who look for Thabo but you need +10.
In the cavern there are 3 mobs ( each gives at last 180 frags with a team of 5 players)
- do events , you have often frags like rewards
- once a month, there is an event where you can win more frags by killing mobs, it is present for 3 days.
You will see a small icon above the skills bar. it is in the same place as for the time of solidarity.
It is better to have a team with +10 Frags, and go farming either in Brigavik in Cardhun (Parallels worlds), or in greylind forest in the land of Immortals.

And there isn't a vendor that sells realm fragments

 

Does difficulty level affect number of fragments?

 

collect cube and open them.