[quote=@Holy Grail]
Congratulations on completing Goliath! He is an interesting concept for a Berserker to be sure. A great 1v1 fighter, but not the best in group fights due to the effect of one of his Personal Skills. 
[/quote]

Exactly.  It's because his most famous fight was a 1v1 battle (he lost, but that was because David's God gave him better stuff).  Were he capable of thinking and using his second NP, his strategy would basically involve him using Challenge of Elah to find a worthy opponent, then isolating the two of them with his sword to have an awesome fight.