DM: *PREVIOUSLY, IN EQUESTRIA...* Well, actually, last time it was more like *"Far forward, in Equestria..."*
Fluttershy: Because the last "Previously" for us is still... Discord. But... I think we're ready to face it this time.
DM: I'm seriously glad to hear that.
Shining Armor: We got the gist of it. Some kind of godlike spirit of chaos, right?
DM: Played by my... D&D mentor, yes.
Twilight Sparkle: And you two are having a *wedding* in the middle of all this?
Princess Cadance: Can't stop love, haha!
Applejack: What did we eventually decide "happened" at the end of our previous in-story session? Because it was up in the air for a bit.
DM: Okay, so, the actual recap. <ahem> *PREVIOUSLY, IN EQUESTRIA...* The world started going topsy-turvy due to the release of the imprisoned god of chaos, Discord. He led the party through a series of trials designed, unfortunately, for one thing: Sowing the seeds of confrontation between the bearers of the Elements of Harmony. Luckily, your friendship held together despite his... *our* efforts, but not before he managed to at least claim Ponyville as the chaos capital of the world. Thankfully, the Elements of Harmony have contained his influence somewhat. Even though there's a warp-field around the town, with some quick thinking you've managed to turn it into a pocket-dimension prison without him realizing yet. So it's mainly a matter of deciding when you're going to gather your strength and confront him. The world keeps turning, if a bit more chaotically.
Rainbow Dash: Wait, so, we don't have to jump through any more hoops to fight him? We can just go when we're ready?
DM: With ample warning that it's not going to be an easy battle, yes.
Rainbow Dash: I mean, I'll take it!
Take all time you need to complete side quests!
"I need these minigame highscores!"
You jumped through the hoops of the Great Plateau to power up the Slate and get the Paraglider? Great. Calamity Ganon/Hyrule Castle is right there, go after it whenever you want, no more hoops. Is it filled to the gills with powerful enemies with powerful weapons, Guardians walking, flying and as turrets? Yes. You have 4 boss fights before the final boss but that's because you didn't go out to kill them individually before hand.
There is nothing stopping you from going there to face him besides your skill level/luck and your own sense of preparedness.
But before all that, he's perfectly happy to sit there in his little pocket dimension and wait for you to get your shit together.
"Alright! Then how about we take some time to finish up any side quests, resolve any unrelated issues, and pick up any sweet-ass items / weapons before this all comes to an end."
The nasty part is that the monsters in the ruins are DEADLY. About the only way to clear the ruin is to hit a refresh/save point, come into the ruin, sneak up on an enemy group (if they get initiative, you're dead), and unload all your strongest attacks. THEN go back to the refresh point to heal up before repeating on the next party.
You will NOT SURVIVE TWO encounters without using the refresh point!
Not to say "when we're ready" can't include such an implication, on its own or in conjunction with other ways in which the party has to be ready to revisit the Discord arc. Hence my concession that YMMV.
Which in this case, no! The door is unlocked.
Hope you enjoy the rest of the comic!