When a player searches for a "Mod Unlimited Gems," they typically envision a modified version of the game (an .apk file for Android or a hacked client for PC) where:
Let’s say you do find a mod that bypasses the visual check and lets you open one free pack. You will be banned. Konami has a three-strike system, but for currency hacking, it is usually an immediate permanent suspension. Yugioh Duel Links Mod Unlimited Gems
What you lose:
The "Soft Ban": Often, instead of banning you instantly, Konami will put you in a "cheater pool." You will only face other modders (who will disconnect and cause you to lose), and your drop rates for rare cards will drop to zero. When a player searches for a "Mod Unlimited
Every time you reach a new PvP rank (Rookie to King of Games), you get a one-time Gem reward. The "Soft Ban": Often, instead of banning you