diff --git a/docs/Rulings_Classes.md b/docs/Rulings_Classes.md
new file mode 100644
index 0000000..a6faf9f
--- /dev/null
+++ b/docs/Rulings_Classes.md
@@ -0,0 +1,60 @@
+# Rulings Classes
+
+## `rulings.Id()`
+Gets the ruling of a card by the Scryfall Id.
+
+**Parameters:**
+
+| Param |Required [y/n]| Input type | Description |
+| :---: | :---: | :---:  |:---: |
+|id|Yes|String|The id of the card you want rulings for.|
+
+**Attributes:**
+The same listed in the `rulings` documentation.
+
+Example usage:
+    rule = scrython.rulings.Id(id='31412335-110c-449a-9c2f-bff8763a6504')
+
+## `rulings.Mtgo()`
+Gets the ruling of a card by the Mtgo Id.
+
+**Parameters:**
+
+|Param|Required [y/n]|Input type|Description|
+|:---:|:---:|:---:|:---:|
+|id|Yes|String|The Mtgo id of the card you want rulings for.|
+
+**Attributes:**
+The same listed in the `rulings` documentation.
+
+Example usage:
+    rule = scrython.rulings.Mtgo(id="24811")
+
+## `rulings.Multiverse()`
+Gets the ruling of a card by the Multiverse Id.
+
+**Parameters:**
+|Param|Required [y/n]|Input type|Description|
+|:---:|:---:|:---:|:---:|
+|id|Yes|String|The Multiverse Id of the card you want rulings for.|
+
+**Attributes:**
+The same listed in the `rulings` documentation.
+
+Example usage:
+    rule = scrython.rulings.Multiverse(id="124451")
+
+## `rulings.Code()`
+Gets the ruling of a card by the set code and collector number.
+
+**Parameters:**
+|Param|Required [y/n]|Input type|Description|
+|:---:|:---:|:---:|:---:|
+|code|Yes|String|The 3 letter set code of the card.|
+|collector_number|Yes|String|The collector number of the card.|
+
+**Attributes:**
+The same listed in the `rulings` documentation.
+
+Example usage:
+    rule = scrython.rulings.Code(code='CSP', collector_number='142')
diff --git a/rulings/mtgo.py b/rulings/mtgo.py
index b0ab7ed..5a17dd9 100644
--- a/rulings/mtgo.py
+++ b/rulings/mtgo.py
@@ -1,7 +1,7 @@
 from .rulings_object import RulingsObject
 
 class Mtgo(RulingsObject):
-    def __init__(self, _id):
-        self.id = _id
+    def __init__(self, **kwargs):
+        self.id = kwargs.get('id')
         self.url = 'cards/mtgo/{}/rulings'.format(self.id)
         super(Mtgo, self).__init__(self.url)
diff --git a/rulings/multiverse_id.py b/rulings/multiverse_id.py
index b290c4f..e92c43b 100644
--- a/rulings/multiverse_id.py
+++ b/rulings/multiverse_id.py
@@ -1,7 +1,7 @@
 from .rulings_object import RulingsObject
 
 class Multiverse(RulingsObject):
-    def __init__(self, _id):
-        self.id = str(_id)
+    def __init__(self, **kwargs):
+        self.id = str(kwargs.get('id'))
         self.url = 'cards/multiverse/{}/rulings'.format(self.id)
         super(Multiverse, self).__init__(self.url)
diff --git a/rulings/scryfall_id.py b/rulings/scryfall_id.py
index 04757de..416ae7e 100644
--- a/rulings/scryfall_id.py
+++ b/rulings/scryfall_id.py
@@ -1,7 +1,7 @@
 from .rulings_object import RulingsObject
 
 class Id(RulingsObject):
-    def __init__(self, _id):
-        self.id = str(_id)
+    def __init__(self, **kwargs):
+        self.id = str(kwargs.get('id'))
         self.url = 'cards/{}/rulings'.format(self.id)
         super(Id, self).__init__(self.url)
diff --git a/rulings/set_code.py b/rulings/set_code.py
index 08994b0..943352e 100644
--- a/rulings/set_code.py
+++ b/rulings/set_code.py
@@ -1,8 +1,8 @@
 from .rulings_object import RulingsObject
 
 class Code(RulingsObject):
-    def __init__(self, code, number):
+    def __init__(self, code, collector_number):
         self.code = code.lower()
-        self.number = str(number)
+        self.number = str(collector_number)
         self.url = 'cards/{}/{}/rulings'.format(self.code, self.number)
         super(Code, self).__init__(self.url)