His Shadow is like Evocation/Thaumaturgy? Excellent! That's because such an ability gets the block as a reduction to its control roll. So, if Nicodemus is under an Epic (+7) block, and he rolls a control of +7, his control result for the Shadow - if it works like Evocation - is reduced to 0, meaning he can't use it at all. If he rolls Legendary, he could "cast" a 1-shift effect.
As for what character could do the physical blocks/maneuers with those guys with Physical Immunity? I was thinking a troll/ogre/giant changeling or a really physically strong scion like a greek Demigod or a Nephilim. They'd be submerged;
Supernatural Strength -4, Supernatural Toughness with a catch -1, maybe hulking size with human form or the mighty thews stunt -1, wrestler -1 and two more left refresh for something else. +5 might and +5 weapons or Fists, for a bruiser.
So, for close-up bruising we have;
+5 melee attack, maybe +6 with a stunt or True Strike, at Wp 7 if they use normal weapons or even Wp 9 if they pick up a desk/tree trunk/car.
+13 for lifting things - enough to lift several tons with ease.
+8 for grappling.
So they'd be able to overpower Nicodemus or the Loup-Garou for a few exchanges. In a straight-up fight Nick and the Loup-Garou are immune to damage but if the wrestling begins, they could lose.