Estrid, Masked Trickster

+2: The next noncreature spell you cast costs {1} less to cast this turn. If that spell is an Aura, it costs {2} less instead.
-3: Create an Aura enchantment token attached to target creature that's a copy of target Aura you control.
-7: You get an emblem with "Whenever you cast an Aura spell, copy it. You may choose new targets for the copy."