You're very close. It's the #$0D at C2/5BC8. 
Note that this changes Enemy Roulette too. But from what I understand, that's something you want to do since you're just moving the Death spell to a different ID.
Edit: you also need to change the #$0D at C2/4F66 and C2/4F77.

Note that this changes Enemy Roulette too. But from what I understand, that's something you want to do since you're just moving the Death spell to a different ID.
Edit: you also need to change the #$0D at C2/4F66 and C2/4F77.