Because you need to hold it in your hand which would invalidate most magus subclasses as they either need a free hand or hold a 2-handed weapon!
Because you need to hold it in your hand which would invalidate most magus subclasses as they either need a free hand or hold a 2-handed weapon!
You can use items to Spellstrike as long as their activation action is “Cast a Spell”. Feats like Striker’s Scroll and Fused Staff primarily avoid you needing the Scroll/Staff in hand.
The issue here is that the Tengu Feather Fan’s activation action is “Interact”.