Keeper's Sack

"Spending power"
Entity ID	5.100.716
Item Pool	Secret Room Shop Treasure Room
Collection Grid	(page 6, column 19, row 5)
Unlock Method	Defeat Mother as Keeper

Keeper's Sack is a passive item added in The Binding of Isaac: Repentance.

Effects

• Gives Isaac stat upgrades when he buys items/pickups from shops.
  • The three possible stat upgrades Keeper's Sack can give are +0.5 damage, +0.03 speed, and +0.25 range.
  • Keeper's Sack will always give one stat upgrade when Isaac makes a purchase, plus one for every 5 cents Isaac spent on the pickup/item.
• Spawns three coins and a key on pickup.

Notes

• Keeper's Sack works with anything that costs coins, including Devil deals/Black Markets as Keeper / affected by Keeper's Bargain or A Pound of Flesh, items or pickups created by Keeper's Box, the Angel shop created by The Stairway, and the second shop created by Member Card.
• All stat upgrades are tied to the item itself; losing Keeper's Sack somehow will result in the loss of all obtained stat upgrades.

Interactions

• Store Credit: Anything bought will not give stats.
• Steam Sale: Stat boosts for every 5 coins spent will only apply to the modified cost after picking up Steam Sale rather than the original cost.