Added arena id endpoint

scrython/__init__.py

@@ -7,6 +7,7 @@ from scrython.cards import Multiverse
 from scrython.cards import Named
 from scrython.cards import Random
 from scrython.cards import Search
+from scrython.cards import ArenaId
 
 #Import classes from rulings
 from scrython.rulings import Mtgo

scrython/cards/__init__.py

@@ -6,3 +6,4 @@ from .multiverse import Multiverse
 from .named import Named
 from .randomcard import Random
 from .search import Search
+from .arena_id import ArenaId

scrython/cards/arena_id.py

@@ -0,0 +1,26 @@
+from .cards_object import CardsObject
+
+class ArenaId(CardsObject):
+    """
+    cards/id
+    Get a card by the Arena id.
+
+    Positional arguments:
+        id : str ....................... The Scryfall Id of the card.
+
+    Optional arguments:
+        Inherits all arguments from CardsObject.
+
+    Attributes:
+        All attributes are inherited from CardsObject.
+
+    Example usage:
+        >>> card = scrython.cards.ArenaId(id="66975")
+        >>> card.name()
+    """
+    def __init__(self, **kwargs):
+        if kwargs.get('id') is None:
+            raise TypeError('No id provided to search by')
+
+        self.url = 'cards/arena/{}?'.format(str(kwargs.get('id')))
+        super(ArenaId, self).__init__(self.url)