Tips for The Keeper (BoI AB+)

Here are some helpful tip for playing The Keeper:

    * As The Keeper you need to blow up pots, especially on The Cellar because it has more pots. What I do is actually hold R until I start on The Cellar to increase the chances of getting Swallowed Penny.

    * Another tip is that Blood Donation Machines are basically a free Speed upgrade.

    * All of the battery items, The Habit, and Piggy Bank are fantastic items for The Keeper. As a result, shops are very valuable.

    * If you find Swallowed Penny and IV bag, you have infinite money. It'll take a while, but that plus Restock means infinite items.

    * In my opinion, Angels deals are more worthwhile because of how unlikely it is to take amazing Devil deals. By taking, say, The Pentagram, you get the Pentagram, sure, but you also lock yourself out of Angel deals, and it's not guaranteed that future Devil deals will be worth anything to you as you likely won't be able to take them safely. The exception being Dead Cat (9 Lives) because it's amazing.

    * Algiz is amazing and run saving. Especially with Tarot Cloth or, even better, Blank Card + Car Battery. I know it's too late for you and could be considered a bit scummy, but I purposefully only unlocked good runes until after I'd completed all Keeper and Lost runs.

    * Greed's Gullet is actually extremely terrible if you have respawn items like Dead Cat (9 Lives) seeing as it will remove health if you go below the coin thresholds regardless of what your HP is.

    * I can't stress enough how vital shop items can be. They are your lifeblood because they augment your spacebar item Wooden Nickel.

    * Blow up shopkeepers on all floors. You need that extra deal chance.

    * If you are going for Angel deals. Try donating money to the donation machine on a floor where you think you'll get a deal. It adds chance for Angel deals on the floor. However, if the machine jams, you can't repeat it on subsequent floors, so you might have to pick carefully when you do this. Then again, you're never guaranteed to ever see a donation machine again, seeing as it could be replaced with a restock machine.

    * Satisfying normal beggars and blowing up devil beggars also add to Angel chance.

    * Blowing up normal beggars obviously add to deal chance, but I believe it might reduce Angel chance. The deal should be worth it, though, unless you already have 100% for the floor.

    * When you have the Swallowed Penny, you can play Sacrifice Rooms for free. This lets you get possible Angel items and guaranteed Key pieces which, again, increase your chance of Angel deals. You can also get the "I am blessed" buff which guarantees an Angel deal on the floor or get teleported outright.

    * Even without Swallowed Penny you can play Sacrifice Rooms if you leave pennies on the ground.

If you want to do well on a Keeper run, you can, a) get lucky, or b) take any and all advantages you can get, and that means playing more methodically.
My final Keeper run was Swallowed Penny, IV bag, Restock = break the game. That transitioned into Blank Card + 2 of Diamonds, then Void, Blank Card, Tarot Cloth, Car Battery Algiz + almost every item in the game. Now, I know you don't like to break runs, but you should at least take advantage of some of these tips because you need more advantages when playing as The Keeper.

You can also just play extremely well. That's always an option. You don't NEED to do these things, but they do help. Algiz is less important seeing as you've already done Hush + Delirium. Congrats on that, by the way.