Silently Watches has already covered this (Several times I think). All breaker-tier spells operate on the same level of restrictions. Not even the White Devil can indiscriminately fire off spells at that level without damaging herself, hence why she was forced to go on sabbatical (and keeps failing to stick to it despite all the warnings). I'm not sure, but I think only Teana has that level of Boom on the TSAB squad that's here, and they aren't going to be sending any reinforcements thanks to the dimensional shear barrier Zion put up when the entities got to Bet...
More breakers were also one of the reasons why we were given the ritual mechanics in the first place, and with the PRT seeing the success of Operation Pentagram they're going to start ramping up the program's deployment, so there are going to be the mages for the final effort once we get that information to Rebecca Costa-Brown/Alexandria, on top of all of the high-end Linker Core mages that are going to be found in the process. Not sure how Silently Watches is going to handle the off-screen ramping up of non Philly departments, but I suspect it's going to take at least another in-game year to two years before we have enough people between the PRT and Arcana at a high enough level to pull this off, plus a few extra just to be on the safe side in case anyone misses...
We're also going to have to find a way to either drive the Endbringer away from wherever it's attacking, since destroy whatever city or infrastructure the Endbringer is attacking would be against the point, and only really "acceptable" if the fight has crossed the Godzilla Threshold, something they're careful not to do with their sandbagging...
I also think this trick is only going to work once, and we should keep burning away at the requirements for Opperation: Endbringer Shunt in the meantime. Just need Missy to get her Big Summon unlocked and 5-6 mages with the spells need for a Forced Dimensional Transport. Might take us about as long to meet those requirements too...
...as an entirely stupid idea, this may or may not include casting them ahead of time, isolating them in timestop, and chucking them later. This is a ridiculously stupid idea though, so probably better to stick to known methods.
Yeah... this would require finding a Parahuman who could create said time displacement, since Breaker spells are known to destroy barriers and none of the time-affecting spells we have available would be able to lock the spells down for more than a few seconds. And after you've found that, then you also have to also know Exactly where the Endbringer is going to be in a couple months at least since we can only safely cast the spell once every couple of weeks or so, and we need 30...
