IF the World Quests remain NOT account-wide, this means the more max level characters you have the sooner you can complete the related achievements. A certain Master Trainer is up? Hop onto your various max level toons and use a different pet-family team on each.
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Dissecting how long it will take to complete upcoming Pet Battle challenges/goals in Legion, with thoughts/opinions on account-wide vs. not towards the end.
Battle on the Broken Isles
- Complete 30 Pet Battle World Quests (37 total possible quests)
- Rewards the Pocket Pet Portal (on use item that increases Pet Journal cap to 1500)
The absolute earliest we can complete this achievement and increase our Pet Journal cap is 10 days after reaching level 110. Realistically it will probably take 10+ days.
Each day there are 3 Pet Battle World Quests available to complete. With VERY GOOD RNG, each of the quests that first pop up during those first 10 days at max level will be different and not repeats.
Testing has shown that repeats are possible and likely. However, the achievement only requires 30 quests out of a total of 37, so initially all of the quests you come across should be unique. But you never know. Sometimes RNG can be kind and sometimes not.
Side note: Account-wide or not doesn't really matter for this achievement. World Quests are set to be static region-wide, so any quest you complete on your main will be the same quest available to any alts that you have.
Family Familiar
- Defeat 12 Tamers (15 total possible) using a team of pets from the same pet family
- 10 different pet families
- Meta-achievement rewards a new pet, Nightmare Treant
The earliest we can complete this quest is more random than the other one. This is because again, RNG can be unkind.
There are a total of 15 possible "master" Tamers, but that's a little less than half of the total number of possible Pet Battle World Quests. It's more than likely that you'll come across a few days where a master Tamer simply isn't up at all.
On top of that, because you can only battle a Tamer once per lockout you'll need certain quests to pop up multiple times in order to defeat the master Tamers using a team of pets from a different family. For example, defeat Nightwatcher Merayl using only Flying pets one day, and then a team comprised of only Beast pets two days later when her quest reappears.
Thankfully we don't need to defeat all 15 master Tamers 10 times each; we can choose the 12 we want to battle for each of the 10 pet families. Going up against X Tamer is too tough for a Mech team? You can always wait for Y Tamer, but that's leaving it a little up to chance because it's random when a different Tamer will show up.
So we'll need 120 battles total to complete this achievement and collect the new pet, but it's entirely up to the randomness of World Quests that will determine when we're able to accomplish this.
It should be noted that it's still not settled if these quests will be account-wide or not. Developer Jeremy Feasel notes that they currently are not account-wide (so we can complete them on different max level characters), but this is subject to change.
Account-wide quests
Best case scenario: at least 1 master Tamer each day, we'll complete this challenge in ~120 days (4 months).
Absolute best case scenario: 3 master Tamers each day, we'll complete this challenge in ~40 days (a little over 1 month).
Not account-wide quests
Completion time will depend on how many characters you have.
If you have 10 toons, you could check off one Tamer for each of the 10 pet families each day. This would cut down completion time drastically.
But you also have to factor in leveling time for each character, since these quests can only be accessed at max level.
How much time we'll have to invest into Family Familiar is still a bit up in the air. We'll have to wait and see.
Account-wide?
Currently, I'm a bit conflicted when it comes to account-wide vs. not account-wide for Pet Battle World Quests.
Account-wide quests would limit our ability to complete the challenges, so it would extend gameplay to the fullest for both of the achievements.
But any alts we level up would miss out on rewards and Pet Battle content in general. Other than the World Quests, the only other pet-related stuff to do is old(er) content, battle wild pets, and collect the new pets.
That would also mean those with full Pet Journals will have to patiently wait out the full 10 days (or more) for a cap increase. A full journal may result in the inability/desire to collect, cutting down pet content for some even further.
Non-account-wide quests would open things up and give us the ability to complete these achievements quickly or as slowly as we please. It would all depend on how much time you want to take to level multiple characters.
The downside is that it might make it a bit mandatory to level up more than one toon. No one likes to feel behind, so that may add pressure to some collectors to speed up the process by adding more toons to their work force. Some may not have the time to do that even if they wanted to.
But it seems like alts are more common place nowadays, so perhaps it won't be as bad.
Conclusion is, I don't know right now. There are pros and cons to both sides.
I don't mind having to patiently wait, and I kind of like the idea of a long-term investment with these achievements and quests.
But I also see the benefit of having non-account-wide quests. It would give us just more pet STUFF to do (even if it's the exact same stuff repeated for each toon), and earning/collecting pets faster is always a plus.
I guess I'll wait to hear more from the community before forming a firm opinion.