'I would love to use my Grimoire's [Analyze], with my staff's [Link] and [Activation] effects, to counter Stefan's abilities, but…'
Doing that against an Arcana was a tall order. Perhaps that would have worked for other Spells, but Elrich was unsure.
He would simply use them when the need called for it. His major options in this battle were his Arcana, the many items that heightened his raw power, and the necklace that would shield him. He also had his rings—each having various elemental attributes that would be somewhat useful depending on the situation.
His Familiar had many uses—most of it involving precognition, battle analysis, weakness identification, information supply, and complete awareness of the details around him. His current mode also vastly improved his cognitive ability, so he could think very fast; much faster than his body could move.
His Familiar, while not having any major offensive ability, was perfect for support!