Use it, then dump it as soon as you dont need it
The important thing to remember is that when you cast an Aura, you are the controller of that permanent, no matter whose creature it enchanted
For example, if the second ability of Hoarding Dragon from the Foundations release ("When this creature enters, you may search your library for an artifact card, exile it, then shuffle.") is copied and two cards are exiled, then when Hoarding Dragon's third ability ("When this creature dies, you may put the exiled card into its owner's hand.") later resolves, if you choose to put "the exiled card" into its owner's hand, both exiled cards will be put into their owners' hands
(9/19/2025) Electro's last ability triggers without requiring a target
One nonbasic land also ties into the multiverse that Marvel has increasingly focused on, particularly in the Spider-Verse animated films