Outwardly, the main distinction between Holo Rares and ordinary Rares is that the craftsmanship on a Holo Intriguing is foil
The Juzam Djinn, when played, can deal 1 damage to a player during upkeep
You can discard a card, then add 2 Fire-type Energy cards from your deck to your hand
If you want a side deck, build it to counter the decks you are likely to face, such as your friends' decks or the decks at your local tournament
Thankfully, cards that give extra slot for books, like her signature and "Arcane Enlightenment" can still hold her personal weakness, and once the book has no horror on it, it auto-discards without the need to replace it with something else to remove it