Chronal Shift (twice a day). As a reaction, after Cassandra or a creature she can see within 9 meters of her makes an attack roll, an ability check, or a saving throw, she can force the creature to reroll. The target must use the result of the second roll.

Momentary Stasis (five times a day). Cassandra can magically force a Large or smaller creature she can see within 18 meters of her to make a Constitution saving throw (DC 19). Unless the saving throw is a success, the creature is encased in a field of magical energy until the end of her next turn or until the creature takes any damage. While encased in this way, the creature is incapacitated and has a speed of 0.

Arcane Abeyance (once a day). Cassandra can store a 4th level spell into a magic mote. The spell is frozen in time at the moment of casting and held within a gray bead for 1 hour. This bead is a Tiny object with AC 15 and 1 hit point, and it is immune to poison and psychic damage. When the duration ends, or if the bead is destroyed, it vanishes in a flash of light, and the spell is lost. A creature holding the bead can use its action to release the spell within, whereupon the bead disappears. The spell uses Cassandra's spell attack bonus (+11) and save DC (DC 19), and the spell treats the creature who released it as the caster for all other purposes.

Convergent Future (once a day). When Cassandra or a creature she can see within 18 meters of her makes an attack roll, an ability check, or a saving throw, she can use her reaction to ignore the die roll and decide whether the number rolled is the minimum needed to succeed or one less than that number.

A spellbook, a dagger, parchment and quill, an arcane focus, and the Voyager Staff.