Mono FPC work well, but not in a topheavy deck. You are missing some FPC staples here: Heitachi, Futoshi, and Shifou. Shifou is mandatory for srsbidnits FPC ELO. Zhu Tang is also amazing in a mono FPC deck.
If you want to run them in a split, try a low-star NM half. Artus adds great DR to your lineup, Pan and Phyllis add some DR penetration, and can toe-to-toe with attack manip clans, if they give you trouble.
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