In that sense, it was really meant to be the Korok Forest
specific armour set, in the same way that the Flamebreaker set was tied to Goron City and the Snowquill set to Rito Village.
One example is winning 25 Iron Banner matches will unlock Ornaments for
that specific armour set.
Not exact matches
Less daft - ly, you should end up either building your armor
sets around
specific armour skills and boosts — opting out of grand defensive upgrades in favour of a higher - level effect, for example — or you should build the best armor for your
specific loadout / play style while also factoring in
armour skills.
The best
armour in Breath of the Wild is the Ancient
set - the Ancient Helm, Cuirass, and Greaves - and is only obtainable after you complete a
specific side quest - Robbie's Research - and you've then collected the right materials to be traded in at the Akkala Ancient Tech Lab.
There's also a Rasputin - themed
armour set which again is
specific as a reward from this event.
The bonuses will give you instant access to a
specific set of
armour and weapons, depending on where you order the game from.
You unlock Ornaments by completing objectives that are
specific to each
armour set, and once you unlock them they're unlocked account - wide.