Uncharted Lands Base 15 - Completely F2P

Apologies for the long gap since my last completely free-to-play post. I got a bit busy with collaborations and such. For this quest, all your SS skills will be ready from the first turn, so I recommend SS skills that deal percentage-based damage or have follow-up attacks. That's why Uriel is optimal in this setup. Uriel's SS puts you in a counter-attack state, so when enemies attack, Uriel's counter-attack triggers your friend skills, turning it into a friend skill game. Therefore, build a team with characters who have counter-attack SS skills and use them as soon as they're ready. Hope this helps!