Tsubame is better than Kerozin Cr
Hatori depends on opinion (it's a great bluff and at same time attacker, opp will likely not pill or pill few fearing the loss of dmg)
Kuei can match up with her pretty well, depends either you want to stop bonus or make sure u have more power than opp
Sung Tsu will be better than her in SoA filled weeks as it'll be a 9/9 often
only 2 cards i can say r worse than her are the 1HKO's as they have low power despite the good bluff they can make
so no Kerozin Cr isn't a must in ELO, possibly there are even better options, but great to use in T2, i think
Well depends on ones play style and actual cards that are ban. Kero lets you save pills by having higher power, Tsuba is nuke safe, Kuei lets you take on Bangers Upps Montanas and SOB( to activate +2 damage) some may play Hattori for some mind games.
But for me (even though i can't afford one) Kero is better. Higher power makes you save pills.