Read the post of the OP
https://www.reddit.com/r/DuelLinks/comments/7vx7vz/how_is_this_possible/
https://www.reddit.com/r/DuelLinks/comments/7vwckl/3x_beta_the_electromagnet_warrior/
That's the new modded APK patch same thing was posted on reddit with 3 Lava Golems first it was being able to see your opponents hand but now you can have 3 of any card like RA honestly can't stand cheaters.
Anoymous
IMANOK