armed dragon deck yugioh Dragunity Legion Structure Single Card Common LV3 SDDL-EN018 YuGiOh Dragunity Legion Structure Deck

I don't think you did anything wrong, people like playing with Dragons and they filled the precon with Dragons

A simple, flying blue-mana creature, it's a vicious looking blue and orange fish with several little clawed hands, fins enlarged into functional wings and a pair of multifaceted eyes

Theme Card Thryx, the Sudden Storm Voracious Greatshark Delightful Discovery Brineborn Cutthroat Capture Sphere Naiad of Hidden Coves Opt Pestermite Spectral Sailor Starlit Mantle Stinging Lionfish Undersea Invader Thriving Isle 7 Island 0017_MTGJ25_Theme: Surprise

Any other attack effects (discarding Energy selected in Step 1, discarding Stadiums, etc) 7