Tyrannosaurus Rex Origamiracle

Fold into Existence. You can use an action to write the word 'Rex' on this paper using any kind of writing implement, in a language of your choice. When you do, the paper magically folds and shapes itself into a small paper tyrannosaurus rex. You can use another action to speak a command word to make the tiny paper dinosaur walk to an unoccupied 15ft. by 15ft. space within 30ft. of you where it then transforms into a full sized Tyrannosaurus Rex made of paper. This Tyrannosaurus Rex is vulnerable to Fire and Slashing damage but has all other statistics and abilities of a regular Tyrannosaurus Rex. 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 Tyrannosaurus Rex defends itself but takes no other actions. The Tyrannosaurus Rex exists for up to 1 hour. At the end of the duration, or when the Tyrannosaurus Rex drops to 0 hit points, the paper shreds itself into tiny pieces and is completely destroyed.