diff --git a/src/client/UI/BuffsUI.lua b/src/client/UI/BuffsUI.lua
index f518b5d..aec7cf8 100644
--- a/src/client/UI/BuffsUI.lua
+++ b/src/client/UI/BuffsUI.lua
@@ -131,6 +131,7 @@ playerStatePromise:andThen(function()
 		end
 	end)
 
+	buffTray:WaitForChild "Frame"
 	updateBuffTray(store:getState())
 	store.changed:connect(updateBuffTray)
 	while true do
diff --git a/src/client/UI/Combat/BossUI.lua b/src/client/UI/Combat/BossUI.lua
index 406c8d6..eca2d6b 100644
--- a/src/client/UI/Combat/BossUI.lua
+++ b/src/client/UI/Combat/BossUI.lua
@@ -35,7 +35,7 @@ Remotes.Client:Get("SendFightInfo"):Connect(function(info)
 	gemsToDisplay = getMultiplierAdjustedStat(player, "Gems", gemsToDisplay)
 	fearToDisplay = getMultiplierAdjustedStat(player, "Fear", fearToDisplay)
 
-	BossUI.Background.Frame.Health:TweenSize(
+	BossUI:WaitForChild("Background").Frame.Health:TweenSize(
 		UDim2.fromScale(1.013 * info.Health / info.MaxHealth, 1.104),
 		Enum.EasingDirection.Out,
 		Enum.EasingStyle.Quad,
diff --git a/src/client/UI/GiftUI.lua b/src/client/UI/GiftUI.lua
index 105698c..32ade3e 100644
--- a/src/client/UI/GiftUI.lua
+++ b/src/client/UI/GiftUI.lua
@@ -91,6 +91,9 @@ function GiftUI:_initialize(): ()
 	end)
 
 	playerStatePromise:andThen(function()
+		store.changed:connect(function()
+			self:Refresh()
+		end)
 		while true do
 			self._counter = (self._counter + 1) % 2
 			self:Refresh(true)
diff --git a/src/client/UI/RebirthUI.lua b/src/client/UI/RebirthUI.lua
index 75f31dc..f8a9b5f 100644
--- a/src/client/UI/RebirthUI.lua
+++ b/src/client/UI/RebirthUI.lua
@@ -28,6 +28,36 @@ local function shouldRefresh(newState, oldState)
 			~= selectors.getStat(oldState, player.Name, "Strength")
 end
 
+local function modifiedBinarySearch(array, value)
+	local low = 1
+	local high = #array
+	local mid = math.floor((low + high) / 2)
+	while low <= high do
+		if array[mid].RangeStart <= value and (not array[mid + 1] or array[mid + 1].RangeStart > value) then
+			return mid
+		elseif array[mid].RangeStart > value then
+			high = mid - 1
+		else
+			low = mid + 1
+		end
+		mid = math.floor((low + high) / 2)
+	end
+	return #array
+end
+
+local function getRebirthStrengthMultiplier(array, rebirths)
+	local multiplier = 1
+	local index = modifiedBinarySearch(array, rebirths)
+	if index == 1 then
+		return multiplier + rebirths * array[1].Multiplier
+	end
+	for i = 1, index - 1 do
+		rebirths -= (array[i + 1].RangeStart - array[i].RangeStart)
+		multiplier += array[i].PreComputedResult
+	end
+	return multiplier + rebirths * array[index].Multiplier
+end
+
 function RebirthUI:_initialize()
 	mainUI.Rebirth.Activated:Connect(function()
 		playSoundEffect "UIButton"
@@ -60,6 +90,25 @@ function RebirthUI:_initialize()
 		end))
 	end)
 
+	self._rebirthMultipliers = {}
+
+	for _, multiplierValue in ReplicatedStorage.Config.Rebirth.StrengthMultipliers:GetChildren() do
+		table.insert(self._rebirthMultipliers, {
+			RangeStart = tonumber(multiplierValue.Name),
+			Multiplier = multiplierValue.Value,
+		})
+	end
+
+	table.sort(self._rebirthMultipliers, function(a, b)
+		return a.RangeStart < b.RangeStart
+	end)
+
+	for i = 1, #self._rebirthMultipliers - 1 do
+		self._rebirthMultipliers[i].PreComputedResult = (
+			self._rebirthMultipliers[i + 1].RangeStart - self._rebirthMultipliers[i].RangeStart
+		) * self._rebirthMultipliers[i].Multiplier
+	end
+
 	playerStatePromise:andThen(function()
 		self:Refresh()
 		store.changed:connect(function(newState, oldState)
@@ -85,7 +134,13 @@ function RebirthUI:Refresh()
 		self._ui.Background.Passes["2xTokens"].Visible = true
 	end
 	self._ui.Background.Tokens.Text = `{formatter.formatNumberWithSuffix(rebirths * tokenMultiplier)} Rebirth Tokens`
-	self._ui.Background.Strength.Text = `{formatter.formatNumberWithCommas(1 + 0.01 * rebirths, 2)}x Strength`
+	self._ui.Background.Strength.Text = `{formatter.formatNumberWithCommas(
+		getRebirthStrengthMultiplier(
+			self._rebirthMultipliers,
+			rebirths + selectors.getStat(store:getState(), player.Name, "Rebirths")
+		),
+		2
+	)}x Strength`
 end
 
 task.spawn(RebirthUI._initialize, RebirthUI)
diff --git a/src/server/Combat/Perks/Pets.lua b/src/server/Combat/Perks/Pets.lua
index 596b4b8..537bd2c 100644
--- a/src/server/Combat/Perks/Pets.lua
+++ b/src/server/Combat/Perks/Pets.lua
@@ -154,6 +154,8 @@ end)
 
 Remotes.Server:Get("EquipBestPets"):Connect(function(player: Player)
 	local equippedPets = selectors.getEquippedPets(store:getState(), player.Name)
+	local lockedPets = selectors.getLockedPets(store:getState(), player.Name)
+	local ownedPets = selectors.getOwnedPets(store:getState(), player.Name)
 	local bestPets = petUtils.getBestPetNames(
 		selectors.getOwnedPets(store:getState(), player.Name),
 		selectors.getStat(store:getState(), player.Name, "MaxPetEquipCount")
@@ -164,11 +166,21 @@ Remotes.Server:Get("EquipBestPets"):Connect(function(player: Player)
 	end
 
 	local bestPetsDict = {}
+	local petsToUnlock = table.clone(equippedPets)
 	for _, bestPetName in bestPets do
 		bestPetsDict[bestPetName] = (bestPetsDict[bestPetName] or 0) + 1
 	end
 
-	store:dispatch(actions.unlockPlayerPets(player.Name, equippedPets))
+	for petName, count in bestPetsDict do
+		local lockCount = lockedPets[petName] or 0
+		local equipCount = equippedPets[petName] or 0
+		if ownedPets[petName] - (lockCount - equipCount) < count then
+			local countToUnlock = count - (ownedPets[petName] - (lockCount - equipCount))
+			petsToUnlock[petName] = (petsToUnlock[petName] or 0) + countToUnlock
+		end
+	end
+
+	store:dispatch(actions.unlockPlayerPets(player.Name, petsToUnlock))
 	store:dispatch(actions.unequipPlayerPets(player.Name, equippedPets))
 	store:dispatch(actions.equipPlayerPets(player.Name, bestPetsDict))
 	store:dispatch(actions.lockPlayerPets(player.Name, bestPetsDict, true))
diff --git a/src/server/Exchange/init.lua b/src/server/Exchange/init.lua
index 231628a..ad7baa6 100644
--- a/src/server/Exchange/init.lua
+++ b/src/server/Exchange/init.lua
@@ -94,7 +94,10 @@ local function handlePunchingBag(bag: any)
 				prompt.ActionText = "Start Training"
 				inUse = false
 
-				if selectors.getStat(store:getState(), player.Name, "Strength") >= initialStrength then
+				if
+					selectors.isPlayerLoaded(store:getState(), player.Name)
+					and selectors.getStat(store:getState(), player.Name, "Strength") >= initialStrength
+				then
 					humanoid.RootPart.CFrame = teleportPart.CFrame
 						+ Vector3.new(0, 1, 0) * (humanoid.RootPart.Size.Y + 3)
 				end
diff --git a/src/server/PlayerManager/GlobalLeaderboards.lua b/src/server/PlayerManager/GlobalLeaderboards.lua
index 5d4ef63..7139db4 100644
--- a/src/server/PlayerManager/GlobalLeaderboards.lua
+++ b/src/server/PlayerManager/GlobalLeaderboards.lua
@@ -50,24 +50,19 @@ end
 
 local function updateGlobalLeaderboardStores(): ()
 	for _, player in Players:GetPlayers() do
-		if
-			not profiles[player.Name]
-			or permissionList.Admins[player.UserId]
-			or not selectors.isPlayerLoaded(store:getState(), player.Name)
-			or player.UserId < 0
-		then
+		if not profiles[player.Name] or permissionList.Admins[player.UserId] or player.UserId < 0 then
 			continue
 		end
 		for statName, globalLeaderboard in globalLeaderboardStores do
+			if not selectors.isPlayerLoaded(store:getState(), player.Name) then
+				continue
+			end
 			pcall(
 				globalLeaderboard.SetAsync,
 				globalLeaderboard,
 				tostring(player.UserId),
 				math.floor(selectors.getStat(store:getState(), player.Name, statName))
 			)
-			if not selectors.isPlayerLoaded(store:getState(), player.Name) then
-				continue
-			end
 		end
 	end
 end
@@ -76,7 +71,7 @@ task.delay(10, function()
 	while true do
 		task.spawn(updateGlobalLeaderboardDisplays)
 		task.spawn(updateGlobalLeaderboardStores)
-		task.wait(100)
+		task.wait(120)
 	end
 end)
 
diff --git a/src/server/State/Middleware/ApplyMultipliersMiddleware.lua b/src/server/State/Middleware/ApplyMultipliersMiddleware.lua
index b05e380..3748b1f 100644
--- a/src/server/State/Middleware/ApplyMultipliersMiddleware.lua
+++ b/src/server/State/Middleware/ApplyMultipliersMiddleware.lua
@@ -8,10 +8,62 @@ local rankUtils = require(ReplicatedStorage.Common.Utils.RankUtils)
 local selectors = require(ReplicatedStorage.Common.State.selectors)
 local Count = require(ReplicatedStorage.Common.lib.Sift).Dictionary.count
 
+local rebirthMultipliers = {}
 local applyMultiplierToNegativeWhitelist = {}
 
+for _, multiplierValue in ReplicatedStorage.Config.Rebirth.StrengthMultipliers:GetChildren() do
+	table.insert(rebirthMultipliers, {
+		RangeStart = tonumber(multiplierValue.Name),
+		Multiplier = multiplierValue.Value,
+	})
+end
+
+table.sort(rebirthMultipliers, function(a, b)
+	return a.RangeStart < b.RangeStart
+end)
+
+for i = 1, #rebirthMultipliers - 1 do
+	rebirthMultipliers[i].PreComputedResult = (rebirthMultipliers[i + 1].RangeStart - rebirthMultipliers[i].RangeStart)
+		* rebirthMultipliers[i].Multiplier
+end
+
+local function modifiedBinarySearch(array, value)
+	local low = 1
+	local high = #array
+	local mid = math.floor((low + high) / 2)
+	while low <= high do
+		if array[mid].RangeStart <= value and (not array[mid + 1] or array[mid + 1].RangeStart > value) then
+			return mid
+		elseif array[mid].RangeStart > value then
+			high = mid - 1
+		else
+			low = mid + 1
+		end
+		mid = math.floor((low + high) / 2)
+	end
+	return #array
+end
+
+local function getRebirthStrengthMultiplier(array, rebirths)
+	local multiplier = 1
+	local index = modifiedBinarySearch(array, rebirths)
+	if index == 1 then
+		return multiplier + rebirths * array[1].Multiplier
+	end
+	for i = 1, index - 1 do
+		rebirths -= (array[i + 1].RangeStart - array[i].RangeStart)
+		multiplier += array[i].PreComputedResult
+	end
+	return multiplier + rebirths * array[index].Multiplier
+end
+
 return function(nextDispatch, store)
 	return function(action)
+		local initialMaxFearMeter = nil
+		if action.playerName and selectors.isPlayerLoaded(store:getState(), action.playerName) then
+			initialMaxFearMeter =
+				rankUtils.getMaxFearMeterFromRank(selectors.getStat(store:getState(), action.playerName, "Rank"))
+		end
 		if action.statName and action.incrementAmount then
 			if action.incrementAmount > 0 or applyMultiplierToNegativeWhitelist[action.statName] then
 				local multiplierData = selectors.getMultiplierData(store:getState(), action.playerName)
@@ -66,26 +118,23 @@ return function(nextDispatch, store)
 				end
 
 				if action.statName == "Strength" then
-					action.incrementAmount *= (1 + 0.01 * selectors.getStat(
-						store:getState(),
-						action.playerName,
-						"Rebirths"
-					))
+					action.incrementAmount *= getRebirthStrengthMultiplier(
+						rebirthMultipliers,
+						selectors.getStat(store:getState(), action.playerName, "Rebirths")
+					)
 				end
 			end
 		end
 		nextDispatch(action)
-		if action.statName == "Strength" then
+		local endMaxFearMeter = nil
+		if action.playerName and selectors.isPlayerLoaded(store:getState(), action.playerName) then
+			endMaxFearMeter =
+				rankUtils.getMaxFearMeterFromRank(selectors.getStat(store:getState(), action.playerName, "Rank"))
+		end
+		if endMaxFearMeter and initialMaxFearMeter ~= endMaxFearMeter then
 			local multiplier = selectors.getMultiplierData(store:getState(), action.playerName).MaxFearMeterMultiplier
 				or 1
-			store:dispatch(
-				actions.setPlayerStat(
-					action.playerName,
-					"MaxFearMeter",
-					rankUtils.getMaxFearMeterFromRank(selectors.getStat(store:getState(), action.playerName, "Rank"))
-						* multiplier
-				)
-			)
+			store:dispatch(actions.setPlayerStat(action.playerName, "MaxFearMeter", endMaxFearMeter * multiplier))
 		end
 	end
 end