What models do you fear having an Invulnerable save? The only thing I can really think of is the occasional IC, which you shouldn't be targeting anyways, and Terminators, which if you're attacking them with your Lord, you deserve to lose him to a hail of Powerfists.numberofthebeastxxx said:But he can potentially be killed by models that can take his hits with invulnerable saves.
Though, it looks like #2 is illegal, so #1 wins by default. Remember that when you have a Mark of the Gods then you may only have one Veteran Skill, unless your legion allows more.
Why the Lightning Claws anyways? You wound on a 2+ against most basic troops on the Charge anyways, so what does that expensive pair of Claws net you? Maybe one extra wound, if you're lucky? You would be better off dropping them and Daemonic Strength and taking just a Darkblade - strength six is all you really need.