Oracle Text:
When a creature enters the battlefield, sacrifice Monkey Cage and create X 2/2 green Monkey creature tokens, where X is that creature's mana value.
Mana Value 
Type Line Artifact
Monkey Cage
4 in Stock (Limit of 4 per customer)
Match it with
Magic the Gathering is a registered trademark of Wizards of the Coast, Inc. Magic the Gathering and all Magic the Gathering images are copyright © Wizards Of The Coast, Inc. All Rights Reserved.
This Website © 2023 Maitre de Jeu S.E.N.C