Your best best is ususally during big sales like July 4th or boxing week sale where they provide a selector for a certain amount of units. It's usually in the higher tier bundles. You spend like 10k in units and the next option should get you a selector for 5k. Start saving your units.
Brochacho i have every single basic crystal 7* champ duped and zero onslaughts. Good luck. The biggest mistake i ever made in game was choosing shocker dupe over onslaught first time. How was i to know....how was i...to know.
Comments
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Lol
All your Deathless were paid?
What I can say?
Thanks for your love to the game and congrats