Converters and "Rarity"

I'm confused about how converters and rarity work. It says that it converts to things of the "same rarity". However, what does this mean, exactly?

For instance, sometimes there is an orange and a yellow enhancement in the same set. Can I convert from one to the other in the same set?

Also, can I convert yellow sets into orange sets? If not, for instance, what does Red Fortune convert into?

I'm having an issue turning a mission/rare drop into a task force drop that I really want in the same set. I don't want to waste anymore converters until I know it's at least possible.

Ok, there are 3 ways the converters work:

By Rarity (1 converter)
By Category (2 converters)
By Set (3 converters)

By rarity will take an uncommon and reroll and turn it into any uncommon. It will take a rare and can reroll into any other rare. And the same for Very Rare.

By Category goes by what -kind- of IO it is, like Defense, or Melee attack, or Targeted AOE, or Accurate healing. When it rerolls it will look at what other sets are in the category and the proper level range. Rarity is not taken into account and can result in an uncommon rerolling into a rare or vice versa (however, you cannot get a very rare this way) So for example a Doctored Wounds could become a Numina's Convalescence.

By Set rerolls -within- the same set. So for example turning a Numina's Convalescence Healing/Endurance into the Recovery/Regeneration proc or the Healing/Recharge, etc.

So, converting yellows to oranges can be done via Category and within Set, but never within Rarity. Converting by rarity always nets the same rarity.

So Red Fortune: it depends on the level of the IO because there are multiple defense sets at different level ranges. Red Fortune goes 25-50, which means it over laps with ALL defense sets at some point. At 25-30 it can turn into any other kind of Defense IO. At 31-40 it can turn into a gift of the ancients, serendipity, or luck of the gambler. At 41-50 it can only be turned into a Luck of the Gambler, as it's the only other Defense set in that level range.

For Out-of-Set conversions, the result is ALWAYS from a different set. The system will randomly pick any set other than the current one from the Category or Rarity (depending on the conversion type), then will pick an IO from that set. That means that to get something from the same set using Rarity conversions, you'd have to convert once to get a different set, then convert again and hope it went back to the original set.

If you're after an IO from the same set as the piece you already have, do an In-Set conversion. This will generate a random piece from the same set other than the original one, meaning that you'll have a 1 in 5 chance of getting the piece you want (better odds if the set has less than 6 pieces).

Edit to add more clarity: It IS possible to turn any piece from any set into any other piece in the same set, but only with In-Set conversions. All pieces in the set have the same chance, except the piece you are converting from which cannot occur.
I suspect that you're trying to do something I did once: I got a piece of Freebird as a Mission Complete drop, and since it was level 15 (minimum for that set), I tried converting it to the +Stealth IO. It took me seven rolls of it flipping between the Fly and the Fly/End before it finally became the Stealth. The next two times I tried it, I got the Stealth IO on the first conversion.
In the case of 3-piece sets, you'll always have a 50% chance to get the one you want, or a 50% chance to get the "other one". Grab a coin, and flip it a bunch of times. Heads, you got the piece you want, tails, you didn't. It's likely that you'll see several "lucky" streaks, and several "unlucky" ones.
Remember that Random has no memory. Just because you rolled badly several times previously doesn't mean that a good roll is "due". Each roll has the same probability as any previous roll.

Quote:

Originally Posted by Agent White By rarity will take an uncommon and reroll and turn it into any uncommon. It will take a rare and can reroll into any other rare. And the same for Very Rare. So, converting yellows to oranges can be done via Category and within Set, but never within Rarity. Converting by rarity always nets the same rarity.

Not exactly. Rarity conversions are odd.

Rarity does NOT go by the rarity of the enhancement - it goes by the rarity of the SET. In the case of sets that have a mix of Rare and Uncommon pieces, it seems to be considered an Uncommon set. The first time I noticed this, I did a rarity conversion on a Rare piece of Gaussian's Synchronized Fire Control (a mixed set), and got an IO from an all-yellow set.