diff --git a/scrython/rulings/mtgo.py b/scrython/rulings/mtgo.py
index 5a17dd9..7ddc9ce 100644
--- a/scrython/rulings/mtgo.py
+++ b/scrython/rulings/mtgo.py
@@ -2,6 +2,8 @@ from .rulings_object import RulingsObject
 
 class Mtgo(RulingsObject):
     def __init__(self, **kwargs):
-        self.id = kwargs.get('id')
-        self.url = 'cards/mtgo/{}/rulings'.format(self.id)
+        if kwargs.get('id') is None:
+			raise TypeError('No id provided to search by')
+
+        self.url = 'cards/mtgo/{}/rulings'.format(str(kwargs.get('id')))
         super(Mtgo, self).__init__(self.url)
diff --git a/scrython/rulings/multiverse_id.py b/scrython/rulings/multiverse_id.py
index e92c43b..97e6a5c 100644
--- a/scrython/rulings/multiverse_id.py
+++ b/scrython/rulings/multiverse_id.py
@@ -2,6 +2,8 @@ from .rulings_object import RulingsObject
 
 class Multiverse(RulingsObject):
     def __init__(self, **kwargs):
-        self.id = str(kwargs.get('id'))
-        self.url = 'cards/multiverse/{}/rulings'.format(self.id)
+        if kwargs.get('id') is None:
+			raise TypeError('No id provided to search by')
+
+        self.url = 'cards/multiverse/{}/rulings'.format(str(kwargs.get('id')))
         super(Multiverse, self).__init__(self.url)
diff --git a/scrython/rulings/rulings_object.py b/scrython/rulings/rulings_object.py
index a478803..95df49c 100644
--- a/scrython/rulings/rulings_object.py
+++ b/scrython/rulings/rulings_object.py
@@ -3,8 +3,6 @@ import aiohttp
 
 class RulingsObject(object):
 	def __init__(self, _url, **kwargs):
-		self.pretty = kwargs.get('pretty', 'None')
-		self.format = kwargs.get('format', 'None')
 		self._url = 'https://api.scryfall.com/' + _url
 		loop = asyncio.get_event_loop()
 		self.session = aiohttp.ClientSession(loop=loop)
@@ -16,8 +14,8 @@ class RulingsObject(object):
 		self.scryfallJson = loop.run_until_complete(getRequest(
 			url = self._url,
 			params={
-				'format': self.format,
-				'pretty': self.pretty
+				'format': kwargs.get('format', 'json'),
+				'pretty': kwargs.get('pretty', 'false')
 			}))
 
 		if self.scryfallJson['object'] == 'error':
diff --git a/scrython/rulings/scryfall_id.py b/scrython/rulings/scryfall_id.py
index 416ae7e..efe2433 100644
--- a/scrython/rulings/scryfall_id.py
+++ b/scrython/rulings/scryfall_id.py
@@ -2,6 +2,8 @@ from .rulings_object import RulingsObject
 
 class Id(RulingsObject):
     def __init__(self, **kwargs):
-        self.id = str(kwargs.get('id'))
-        self.url = 'cards/{}/rulings'.format(self.id)
+        if kwargs.get('id') is None:
+			raise TypeError('No id provided to search by')
+
+        self.url = 'cards/{}/rulings'.format(str(kwargs.get('id')))
         super(Id, self).__init__(self.url)
diff --git a/scrython/rulings/set_code.py b/scrython/rulings/set_code.py
index 943352e..c2250e1 100644
--- a/scrython/rulings/set_code.py
+++ b/scrython/rulings/set_code.py
@@ -2,7 +2,5 @@ from .rulings_object import RulingsObject
 
 class Code(RulingsObject):
     def __init__(self, code, collector_number):
-        self.code = code.lower()
-        self.number = str(collector_number)
-        self.url = 'cards/{}/{}/rulings'.format(self.code, self.number)
+        self.url = 'cards/{}/{}/rulings'.format(code.lower(), str(collector_number))
         super(Code, self).__init__(self.url)