Developer BlackJack Studio gave us our first taste of gameplay in fantasy tactical RPG Langrisser: Sea of Sword with a brand-new trailer, and it’s immediately clear that the title marks a significant evolution of the series’ hallmarks and a new era for the franchise.The series began with the original Langrisser in 1991, which was known as Warsong when its English localization came to North America in 1992. That first game established the series’ tactical RPG roots, with a commander-and-troop system…