You have not copied a spell using Chandra this turn.
({1} magic symbol) ({U} magic symbol) available.
Steps
Cast any spell, or wait for an opponent to cast one.
Holding priority, cast Memory Lapse either from your hand or from the top of your library by paying ({1} magic symbol) ({U} magic symbol) , targeting that spell.
Chandra, Displacer Kitten and Storm-Kiln Artist trigger.
Resolve the Storm-Kiln Artist trigger, creating a Treasure artifact token.
Resolve the Displacer Kitten trigger, blinking Chandra.
Resolve the Chandra trigger, copying Memory Lapse, targeting the original Memory Lapse.
Storm-Kiln Artist triggers, creating a Treasure artifact token.
Resolve the copy of Memory Lapse, countering the original Memory Lapse and putting it on top of your library.
Activate the Treasures by tapping and sacrificing them, adding ({1} magic symbol) ({U} magic symbol) .