Dad’s Toolbox

• The ULTIMATE RNG item introduced into Isaac. Dad’s Toolbox has a chance to drop PICKUPS or ITEMS when the player gets hit. The item may also trigger a certain EFFECT upon taking hit.
• The chances for good pickups and items are generally balanced. Not all items nor pickups exist in Dad’s Toolbox. If you wish to test your luck there are INCREDIBLY low chances for certain effects to happen upon taking damage including QUALITY 4 ITEMS to spawn. The rarer drops all scale with luck up to a cap of 30 player luck where the chances wont increase any further.
• Dad’s Toolbox spawns in shops for a price of 30, treasure rooms and secret rooms. Dad’s Toolbox is a quality 3 item. However, if you are insanely lucky this item pays back for itself tenfold. The happy animation plays if you got a lucky drop from the toolbox. The item has potential to be "broken" if you, the player, finds themselves with a good source of hearts or some form of invincibility.
• EID description compatible.
• Costume of Isaac holding a little red tool box.
• GOOD LUCK!

NORMAL PICKUPS AND EFFECTS

• BOMB
• HEART
• HALF HEART
• HALF SOUL HEART
• KEY
• PENNY
• DOUBLE PENNY
• DOUBLE KEY
• DOUBLE BOMB
• NORMAL BATTERY
• 3 BLUE FLIES
• 3 BLUE SPIDERS

RARE PICKUPS AND EFFECTS

• TROLL BOMB?
• CHEST (MORE LIKELY IN POOL)
• GOLDEN LOCKED CHEST (MORE LIKELY IN POOL)
• RED CHEST
• STONE BOMB CHEST
• BAG
• RANDOM TAROT CARD
• A RED SPOTTY PILL
• SOUL HEART
• NICKEL
• STICKY NICKEL
• HAUNTED CHEST
• WOODEN CHEST
• MIMIC CHEST(SPIKE)
• CHARM RANDOM ENEMY MAKE THEM YOUR COMPANION PERMANENTLY
• BURN ALL ENEMIES FOR SMALL DAMAGE

ULTRA RARE PICKUPS AND EFFECTS

• GOLDEN BOMB
• GOLDEN KEY
• 2 SCARED HEARTS
• CHARGED KEY
• MEGA BATTERY
• GOLDEN BATTERY
• DIME
• LUCKY PENNY (MORE LIKELY IN POOL)
• GOLDEN PENNY
• MEGA GOLDEN CHEST(MORE LIKELY IN POOL)
• ETERNAL CHEST(MORE LIKELY IN POOL)
• BLACK HEART
• GOLDEN HEART
• DOUBLE HEART
• BONE HEART
• ETERNAL HEART
• GIGA BOMB
• SPAWN A GIANT POOP

NORMAL ITEM DROPS AND EFFECTS

• DAD’S KEY
• DAD’S LOST COIN
• DAD’S RING
• DADDY LONGLEGS
• MOM’S RING
• MOM’S UNDERWEAR
• MOM’S PEARLS
• QUARTER
• DOLLAR
• SKELETON KEY
• PYRO
• DECK OF CARDS
• MOM’S BRA
• MOM’S LIPSTICK
• MOM’S PERFUME
• MOM’S BOTTLE OF PILLS
• RED KEY
• GO TO A "RARE" SHOP NOT ON FLOOR
• SPAWN 40 BLUE FLIES

RARE ITEM DROPS AND EFFECTS

• MAGIC MUSHROOM
• HALO
• GOAT HEAD
• EUCHARIST
• D6
• DEAD CAT
• WAFER
• CAPRICORN
• MOM’S KNIFE
• ROCK BOTTOM
• SATANIC BIBLE
• STAIRWAY
• GO TO ANGEL ROOM NOT ON FLOOR
• GO TO DEVIL ROOM NOT ON FLOOR
• GO TO A PLANETARIUM NOT ON FLOOR
• GO TO A KEEPER SHOP RARE VARIANT NOT ON FLOOR

TRINKETS

• MAGGY’S FAITH
• FOUND SOUL
• MOM’S LOCK
• FADED POLAROID
• BAG LUNCH
• BIBLE TRACT
• BLOODY PENNY
• BLESSED PENNY

ULTRA RARE ITEMS AND EFFECTS

• I think i will keep it secret 😉

If you are interested in knowing how my luck system and drop chances work you can read about it here:

Pickups, Items, Trinkets and Effects are assigned to a rarity pool where the % chance is lower the rarer the perceived drop is. A dice is rolled represented as a float (which would be our %). If the roll is lower or equal to the chance for that drop pool then it randomly selects one of the drops from that pool. However if this fails another dice is thrown and the process is repeated for a different chance pool. This means that the further down you go towards the super rare pools the more dice you have to throw and the smaller the chance is that it will land. If the dice rolled never fit any of the % chance of the pools nothing happens until next hit.

With the new update player luck now effects the % chance the dice will hit for a select few of the rarer pools where 1 luck increases the chance by 1%. However this is mitigated by dividing it by 2 and 4 for the ultra rare pool so that the % increase is instead 0.5% and 0.025% for the very rarest drops and effects. This caps at 30. meaning for normal item pools if the player has 30 luck they will increase their chance by 30%!

Essentially, keep in mind that even though some of the % chances seem high they are not. Since multiple rolls have to line up for Dad’s Toolbox to activate, without high player luck it is very unlikely after even multiple hits.

CHANCES FOR POOLS

• NORMAL PICKUPS/EFFECTS: 70%
• RARE PICKUPS/EFFECTS: 40%
• ULTRA RARE PICKUPS/EFFECTS/TRINKETS: 17.5%, SCALES WITH LUCK
• NORMAL ITEM DROPS/EFFECTS/TRINKETS: 12.5%, SCALES WITH LUCK
• RARE ITEM DROPS/EFFECTS: 1%, SCALES WITH LUCK BUT LOWER
• ULTRA RARE ITEM DROPS/EFFECTS: 0.1%, SCALES WITH LUCK BUT VERY LITTLE