Thanks, I think it's also great to be new and weak, because then the meta kinda doesn't exist for me so I can use whoever I want and even the dirtiest strategy like above clear with Valentine Knotweed, for the win
To be honest, even as good player, cheap strategies works and may even be the only way (hi floor 196). But that makes the game really fun. More than just sending the big guns and destroying everything.

Usagigoke (swimsuit) is nice (and you will have 100% to get her in one of the swimsuit 30FG gacha this summer).
I usually use that team with her as main intercept team: [Chat Chit] DMM FKG-usagigokeswimsuit.jpg (FM are adapted for castle floor 197). sometimes I replace Purslane with regular Usagigoke for extra hit rate debuff.
They just can't die but can't kill anything with too much HP (you may hit the hidden turn limit after ~30min before killing the enemy).

For your team, Vanda or Red Spider Lily (Dress of Sparkling Passion) may be great for Intercept damage buff and another attacker with Red Spider Lily. Vanda allows to reach 70% hit rate debuff (even if her 50% is way too much with 60% from Jack).

As FM, you may want An enthusiastic comeback!. It cover the 10% miss needed to reach 70% (on one enemy though) and gives a good ATK buff.