I use save states but uh yeah. I had to retry like twice but I found it… kinda fun? The previous maps were a complete breeze so it was nice to have some difficulty, even if somewhat convoluted. My Eirika was uber-stats so I sent her solo along the right side of the map with light brands and wind swords while the rest of my units picked on the left, after Eirika mopped up the entire right side and the two bosses I had her meet back up with the left side and sent her down to kill the last boss.
You get Nihil for doing the map “perfectly” and not letting a single green unit die, and I find that Nihil is ABSOLUTELY required if you want to take on a certain optional boss in Lagdou Ruins 1.
Also, believe it or not up until beating the main story I never once used Tower of Valni or random encounters, my Eirika was about Lv 18 on Ch19x just from story EXP alone.
If I had any tips to give, you need to have a competent flier unit and send them racing to the upper left of the map so the shark bandit guys don’t kill the ships. I used Tana, but probably Cormag and maybe Vanessa and Syrene works too, I sent Syrene behind Tana but she mostly did no combat, she was useful for rescue drop strats. Oh yeah have some fliers save the bottom left village on turn one. Also some other competent units and Anna riding with cavalry to the upper left to make sure Jake doesn’t die, who is basically RNG-reliant to survive for the first few turns.
Also I used a Warp on the very last turn to have Eirika KO the last boss on the bottom because I was uncomfortable with how close the boss was to my other units but it’s honestly unnecessary, my Eirika has 10 mov and I basically wasted a Warp use despite having save states.
