>If both are on the field, Xichunmael gains more poise potency on skill use
The attack power up is nice, but her main issue is maintaining her own count, without playing on MD she's just gonna run out even faster.

Also cockclair seems nice, tons of count on hit, and tons of coins to proc rupture. Yi sang also seems fun, with his enhanced S3 looking a tad more restrictive, concussion alone may make him worthwhile. I'll at least swap out Greg from my team when farming MD now for Sinclair.