Wyvern Origamiracle

Fold into Existence. You can use an action to write the word 'Wyvern' 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 Wyvern. You can use another action to speak a command word to make the tiny paper wyvern fly to an unoccupied 10ft. by 10ft. space within 30ft. of you where it then transforms into a full sized Wyvern made of paper.   This Wyvern is vulnerable to Fire and Slashing damage but has all other statistics and abilities of a regular Wyvern. 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 Wyvern defends itself but takes no other actions. The Wyvern exists for up to 8 hours. At the end of the duration, or when the Wyvern drops to 0 hit points, the paper shreds itself into tiny pieces and is completely destroyed.