While it only triggers once per damage instance, Magmatic Galleon's effect isn't once per turn
Challenges include raw material cost volatility (especially acrylic) and increasing competition pressuring margins

Brago, King Eternal Ultimate Masters Guilds of Ravnica Niv Mizzet, Parun, Emmara, Soul of the Accord, Lazav, the Multifarious (decklist in the comments), Tajic, Legions Edge, Etrata, the Silencer, Izoni, Thousand-Eyed Commander 2018 Aminatou, the Fateshifter, Xantcha, Sleeper Agent, Lord Windgrace, Brudiclad, Telchor Engineer Core Set 2019 Sai, Master Thopterist, Goreclaw, Terror of Qal Sisma, Vaevictis Asmadi, the Dire, Chromium, the Mutable Battlebond Dominaria Teshar, Ancestors Apostle, Grand Warlord Radha, Arvad the Cursed, Muldrotha, the Grave Tide, Slimefoot, the Stowaway, Yargle, Glutton of Urborg, Squee, the Immortal, Firesong and Sunspeaker, Jodah, Archmage Eternal, Tiana, Ships Caretaker Masters 25 Rivals of Ixalan Azor, the Lawbringer, Etali, Primal Storm, Nezahal, Primal Tide, Zacama, Primal Calamity, Tetzimoc, Primal Death, Zetalpa, Primal Dawn, Ghalta, Primal Hunger Unstable Grusilda, Monster Masher, Dr

Ditching its normal Dark or Fighting type, Tyranitar proudly dons its light bulb Tera Crown and Lightning typing, coming in just before Charizards Full Art at number 211 in the setlist
Wedju Temple Mentioned before with Golem that Guards the Millennium Treasures , this card allows you to place any monster from your hand into the Spell & Trap Zone as a face-up continuous spell, and place 1 Millennium Monster from your deck into your Spell & Trap zone as a face-up continuous spell