Giant Spider Origamiracle

Fold into Existence. You can use an action to write the word 'Spider' on this paper using any writing implement, in a language of your choice. When you do, the paper magically folds and shapes itself into a small paper spider. You can use another action to speak a command word to make the tiny paper spider run to an unoccupied 10ft. by 10ft. space within 30ft. of you where it then transforms into a full sized Giant Spider made of paper.
  This Giant Spider is vulnerable to Fire and Slashing damage but has all other statistics and abilities of a regular Giant Spider. In combat it rolls its own initiative. It is friendly to you and your allies, understands your languages and obeys your spoken commands. If you issue no commands, the Giant Spider defends itself but takes no other actions. The Giant Spider exists for up to 1 hour. At the end of the duration the paper shreds itself into tiny pieces and is completely destroyed.