I'm showing You Echinops Boss Fight Concept.
Echinops can quickly teleport (aka dig) to player. He can summon his "roots" too - they will follow player and attack him - but don't worry, they are weak - even low level character with crappy equipment should one-hit them.
Defeating Echinops will be a challenge - the roots summons quickly, and Echinops teleports frequently too.
On video Gothic 2 Sword and Armor shown too.