Legendary Purple Wyrm

The Purple Wyrm has a power of 10.
It regenerates 3 power during each player’s turn.
It returns to full power at the end of the round/year.
The Wyrm can burrow away from their spot and move 5 spaces per round/year.
They will go after the current army in the field with the most troops after year 5.
In the case of a tie flip a coin. If the Wryms relic is stolen the Wyrm will attempt to retrieve the relic at all cost and return it to their lair.