mtg the lord of the rings card list One Ring · the Rings: Tales of Middle-earth (LTR) #246 · Scryfall Magic: The Gathering Search If you do mtg lord of the rings

He loves the collectible nature of the game, but never wants to play it

Well, you'll either need to collect the cards from Arena booster packs for the sets they came in, or else directly 'craft' the specific cards you need using MTG Arena Wildcards - effectively tokens you can exchange for the exact Common, Uncommon, Rare, or Mythic Rare card you want, depending on the type of Wildcard

Legendary Creature - Wizard Avatar Gandalf the White Flash You may cast legendary spells and artifact spells as though they had flash

Favor untapped dual lands and avoid overly greedy color requirements that slow down early turns

Hardly seems like enough

It would rate around the middle of this list, if the cards weren't about to rotate out of Core constructed