As with D&D Goblin Slayer, D&D Sword Maiden’s stat block is going to use the standard block to start.
The one spell we know Sword Maiden has is Resurrection, which is a 7th-level spell.
Like with Goblin Slayer, Sword Maiden has not shown any aptitude for speaking languages outside of Common, the language that everyone speaks, so which three other languages is also up to the player.