I recently did a greed mode run in which I broke the game with the D20, battery strategy. (Reroll into chests and reroll some more untill you can't see the floor anymore).
Since this allowed me to generate infinte money I was able to buy a lot items up to the point where the 2nd breakfast started spawning all the time.
I also found the D4 and MissingNo which reroll your current build into something else.
I thought "Well I'm op anyways, let's just reroll my complete build. What's the worst that could happen?"
Apparently the worst that could happen was me losing all my item instead of rerolling them. Also note that this was before I exhausted a single item pool.
Is this a bug? Or is there a maximum amount of Items I can reroll on myself?
Best Answer
This is a known bug with the D4 (and other item-rerolling effects, such as those from MissingNo and the D100).
The way rerolls work is that all passive items you collect are not removed from your character, but disabled and inaccessible. In return, the game gives you an equal amount of passive items from random pools. However, if an item pool is empty and the game needs to give you an item from that pool, the item will be Breakfast (a plain +1 HP). So, though you may not have exhausted every item pool, you probably exhausted some of the smaller ones (such as the gold and red chest pools). As a result, every time the game decides to give you an item from one of those exhausted pools, you'll earn a Breakfast instead of some other passive item.
In a breaking run where you've got a near-infinite amount of money and/or rerolls, it's quite possible that you exhausted multiple item pools. When you rerolled, the game probably picked items from those pools and left you with nothing but a bunch of HP. If you reroll again, there is a possibility you might get a handful of other items back (pulled from any pools you haven't completely sucked dry yet), but chances are it will just be more breakfasts.