I won't count Characters who aren't Confirmed Dead such as Kaidou/Big Mom & Pekoms
But He definitely is Killing much more Compared to Pre-TS
So far, He Killed:
Absalom
Ashura Doji
Izou
Mjosgard
Kanjuro
Orochi
Cobra
Yasuie
Pedro
Some Vegapunks
T-Bone
Vergo
Monet
And who knows, maybe We can also add
Kuma
Hawkins
Jack
Pekoms
Kaidou
Big Mom
Perospero
Shachi & Penguin & Jean Bart
So even if few of these Return somehow, it's still a Big Death Count for what We got used from Pre-TS Oda