What I've done is that I copy this code from the common1.cns: (Not fully sure if it's exactly the same, but it should be pretty similar.)

[State 5900: Spawn Kamek's Helper]
type = Helper
trigger1 = !NumHelper(1338000000) ;&& TeamMode = Single
name = "Syshelper"
stateno = 1338000000
ID = 1338000000

Then I proceed to paste it into the character's 0 and 5900 states.
(I'm not fully sure if the helper can still activate if the code is only pasted in one of the states. I recall there being a potential chance for the helper to not activate at all. It wouldn't hurt to paste the code in both states though.)

Since that character is most likely using their own common1.cns file, you'll need edit the character's def file to read BM's common1.cns while also reading their own common1.

I'm going to use Utsuho by Kohaku's .def as an example.

[Files]
sprite=Utsuho_K.sff
sound=Utsuho_K.snd
anim=Utsuho_K.air
cmd=Utsuho_K.cmd
cns=Utsuho_K.cns
st=Utsuho_K.cns
stcommon=Utsuho_K_common.cns
pal1=Utsuho.act
pal2=Teal.act
pal3=White.act
pal4=Kohaku.act
pal5=Mango.act
pal6=Halloween.act
pal7=Magneto.act
pal8=Plue.act
pal9=Blapurple.act
pal10=Yellow.act
pal11=Preen.act
pal12=Breen.act
st1=option.txt
st2=strikerbar.st

Since the character is using her own file for her common states you'll need to edit the line so it loads BM's common1.cns, then add an extra "st=" line so it can also read her own common states.

[Files]
sprite=Utsuho_K.sff
sound=Utsuho_K.snd
anim=Utsuho_K.air
cmd=Utsuho_K.cmd
cns=Utsuho_K.cns
st=Utsuho_K.cns
stcommon=common1.cns
pal1=Utsuho.act
pal2=Teal.act
pal3=White.act
pal4=Kohaku.act
pal5=Mango.act
pal6=Halloween.act
pal7=Magneto.act
pal8=Plue.act
pal9=Blapurple.act
pal10=Yellow.act
pal11=Preen.act
pal12=Breen.act
st1=option.txt
st2=strikerbar.st
st3=Utsuho_K_common.cns

Since the announcer helper states (hopefully) will be missing from Utsuho's regular states, Mugen will read BM's common1.cns and use those helper states for the announcer.



Unfortunately, this also means that if you decide to use a different common1.cns for some reason, your patched characters will spawn clones due to failing to read the helper states. Also, as the announcer system relies on the hitsparks and hitsounds, should you chose to change them, the announcements will not appear/be heard.
(Though there are workarounds to these.)


I don't know if there's a better method to do this. If anyone knows a more effective way for this, then by all means, share it with us.