Impression: Onimaru was hard to get a handle on, ended up using some pretty poor rushes and fizzling out mid/late game with a soft set of chips and no economy. Once I started being more thoughtful with his chips I enjoyed him.
Chips: Riposte was nice for pigging and to react to heavy red banks, but being a blue arrow really messed me up. Double slash was misused frequently until I started to pick my spots, was good at trimming my gem pile or drawing out big counters. Wartime Tactics is amazing! Took the longest to get in my head, but once I remembered your point on getting a good spread of chip costs in your deck I really took a shine to this one. Really forced me to read the bank but won me almost every game I played. Stellar chip!
Highlights/Lowlights: Again, hard to pick out particular matchups that shone or stunk, but I did find myself struggling if the bank didn't have forks or econ chips. Oni seemed to be really vulnerable to messing up my sequencing of arrows, and maybe just compared to the other two I played but he also seemed to struggle with upgrading his gems (or just econ in general).