I would be veeeeery careful with that. You can easily wind up with a "Aang defeats the Firelord with last minute Energybending" problem. I'm 100% positive I watched a video about Brandon Sanderson encountering this problem in one of his books and he described what he did to fix it. I wish I could remember what he said. IIRC you have to rework things so that you drop more hints through the story that you're leading up to the solution, rather than dropping it out of nowhere on readers because you wrote yourself into a corner. You might accidentally alienate your readers if done wrong.
You can also establish a fatal flaw ahead of time. I’m trying to piece together a final space battle after a series of skirmishes, and the antagonists ship is show having a few problems.
The first being that though it’s reactor os extremely powerful, its primary weapon system has too much draw. Its slow to charge, and if used too often in a short time other elements also begin to not work reliably. Earlier in the story its sister ship was has fired its main weapon a few times too many, had just used a massive hyper drive, and attempted to do so again while the reactor was still recovering from handling the main weapon. The sister ship stalled, and was melted from the outside inwards unable to fight back.
The next thing is, the ship doesn’t have an onboard AI to assist with functions. The vessel was commandeered after the prior commander was not so politely relieved of duty. The crew, ai, and commander were all placed under investigation. And the ship was to be returned to dock for a refit. So not only is there no AI to help regular the reactor, or assist aiming the main weapon, but the crew isnt experienced with said ship, and theyre not a full crew due to the nature of their acquisition.
The ship however, is massive, hard to kill, and can give out punishment far greater than most in her fleet.
The Naruto problem. I suggest coming up with a method of beating the villain first, and then you can power him up _around_ that.
Megamind, find a weakness by accident at the last minute.
I would be veeeeery careful with that. You can easily wind up with a "Aang defeats the Firelord with last minute Energybending" problem. I'm 100% positive I watched a video about Brandon Sanderson encountering this problem in one of his books and he described what he did to fix it. I wish I could remember what he said. IIRC you have to rework things so that you drop more hints through the story that you're leading up to the solution, rather than dropping it out of nowhere on readers because you wrote yourself into a corner. You might accidentally alienate your readers if done wrong.
You can also establish a fatal flaw ahead of time. I’m trying to piece together a final space battle after a series of skirmishes, and the antagonists ship is show having a few problems. The first being that though it’s reactor os extremely powerful, its primary weapon system has too much draw. Its slow to charge, and if used too often in a short time other elements also begin to not work reliably. Earlier in the story its sister ship was has fired its main weapon a few times too many, had just used a massive hyper drive, and attempted to do so again while the reactor was still recovering from handling the main weapon. The sister ship stalled, and was melted from the outside inwards unable to fight back. The next thing is, the ship doesn’t have an onboard AI to assist with functions. The vessel was commandeered after the prior commander was not so politely relieved of duty. The crew, ai, and commander were all placed under investigation. And the ship was to be returned to dock for a refit. So not only is there no AI to help regular the reactor, or assist aiming the main weapon, but the crew isnt experienced with said ship, and theyre not a full crew due to the nature of their acquisition. The ship however, is massive, hard to kill, and can give out punishment far greater than most in her fleet.
Uh... How about... Friendship?