Interesting beginnings

I brought my new army list to Legends yesterday to give it a play test and see if there are any change that I need to make.  I was pleased but am still uncertain as to a few things.

I played against blood angels and got lucky that he attacked me piecemeal and was able

Saga for the wolf lord

The Wolf Lord is kitted as follows:

• Wolf Claw (re-rolls hits or wounds in close combat)
• Storm Shield (3+ invulnerable save)
• Wolf Tooth Necklace (3+ to hit)
• Runic Armor (2+ save)
• Runic Charm (5+ save against psychic power)

I have 3 options for the wolf lord and I'm still not certain which one I should pick:

• Saga of the Bear: Gives the model the eternal warrior special rule
• Saga of the Warrior Born: Gives the model extra attacks equal to the number or enemies he killed last turn
• Saga of the Beast Slayer: Rerolls to hit against models with Toughness 5 or higher (and with the wolf claw the lord retools both hits and wounds in close combat)

I'm still not certain... at least against blood angels it pays to take Saga of the Beast Slayer but it would be wasted against horde armies as would be any of the other sagas. THinking about it reminds me that I have to use the special abilities I give my guys... I never used the necklace 'hit on 3+' ability.... Grrr