Not really. With the Summer Update 2013 Part 2, Cipsoft implemented the current reward system for boss fights, and The Welter was also introduced in the same update with new artificial intelligence mechanics. It is obviously connected to Hydras at one of the oldest spots for Hydras' respawn (Port Hope).
You can find more information about this in the source: https://tibia.fandom.com/wiki/Updates/10.20
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