DamageSource01

public ITextComponent getDeathMessage(LivingEntity playerEntityIn) {
        PlayerEntity playerEntity = (PlayerEntity) playerEntityIn;
        String s = "death.attack." + this.damageType;
        String s1 = s + ".boundPlayer";

        IBoundCapability boundPlayer = playerEntity.getCapability(BindingCapabilities.LIFE_BOUND_CAPABILITY).orElse(null);

        return playerEntity != null ? new TranslationTextComponent(s1, playerEntityIn.getDisplayName(), playerEntity.getServer().getPlayerList().getPlayerByUUID(boundPlayer.getUUID())) : new TranslationTextComponent(s, playerEntityIn.getDisplayName());
    }