Double Spellstrike Feature 19
You can extend the magic of spells you store with Spellstrike. After you make a Spellstrike with a spell cast from a spell slot, you retain an echo of the spell, stored in your body. The next time you Spellstrike, you can cast the same spell again without expending a spell slot.
If you choose to cast a different spell with Spellstrike, or you go 1 minute without using the stored spell, the stored spell dissipates harmlessly.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
MagusThis indicates abilities from the magus class.