Shielding Strike
As you attack a foe, warding magic transforms your momentum into action and lifts your shield. Make a melee Strike. You can then either Raise a Shield if you're wielding one or cast Shield if you have the spell.
Traits
An action with this trait requires a degree of mental concentration and discipline.
Focus spells are a special type of spell attained directly from a branch of study, from a deity, or from another specific source. You can learn focus spells only through special class features or feats, rather than choosing them from a spell list. Furthermore, you cast focus spells using a special pool of Focus Points—you can't prepare a focus spell in a spell slot or use your spell slots to cast focus spells; similarly, you can't spend your Focus Points to cast spells that aren't focus spells.
This indicates abilities from the magus class.