Instants are spells you can cast at almost any time
Other games have these sorts of cards that are basically deck neutral cards like Mew ex from Pokemon TCG are a great example that pair with a variety of strategies
Mystical Tutor, Worldly Tutor, Sylvan Tutor, Personal Tutor, and Enlightened Tutor are all one-mana tutor options that can find specific types of cards
Commander Decks The four Commander Decks for The Lord of the Rings: Tales of Middle-earth add even more characters and flavor to the experience
It can pick off a Lucky Clover or two, take out Fires of Invention, and give Wilderness Reclamation fits
As for commander options, Thalia and The Gitrog Monster is a more solid option overall, doing exactly what youd expect from this card but better