- the player enlargement potion is from the warrior holidays
- there is no potion to make you bigger but 1 to make you smaller (failed alechmical potion)
- orcs are same size but the FOV aspect from allods was changed some time ago, this changed especially the appeareance of orcs (btw this is crap since you cannot alter the FOV manually any longer which reduces the FOV dramatically); result is you need a "FOV hack" to play properly
- when warriors use the dragontearskill which enhances DMG they get bigger
- fervor was mentioned by yourself, the more players are in your range the bigger you get (up to 6 stacks)