It is quite right that Claudius is poisoned. I mean, he’s stabbed (or sliced) too but the venom is exactly the right way to kill him, given how much poisoning he does.
What are his weapons?
Poison. Poison poison and poison. It is his real work.
No rapier and dagger for him, no, no. It is poison all the way. And a poisoner ought to meet his end with poison. It is the only justice.