From the in-game Codex
FAQ
QUESTIONS
How do I get better cards?
Roll more, unlock card packs, and turn on realms with Realm Potions. Rare cards also come from story, quests, rifts, raids and Draft Mode.
What do the borders mean?
Every card has Basic, Gold, Rainbow and Secret versions - each one rarer and stronger than the last.
How do I get Trait Rerolls?
Open the Trait Reroll item page - it lists every way to get them.
How do I get Stat Rerolls?
Open the Stat Reroll item page - it lists every way to get them.
What adds Luck?
Potions, realms, traits, upgrades, the group, friends, passes and server luck all add up.
When does the rift open?
On a fixed clock, the same in every server. The Rift Timer by the rift portal shows when.
Why does crafting keep some of my copies?
The copies in your decks and your follow card are never used - only spare copies count.
How do I fight two battles at once?
That's Multi Battle - a pass (also in some event shops).
How do I make battles faster?
Battle speeds unlock from story stages and a pass.
I found a bug or have an idea - where do I tell you?
Tell us in the Discord server - with a clip or screenshot if you can.