Hello, folks! Today, I’m doing a very quick Elven Council Upgrade Guide, talking just about 3 cards, which you should add to the deck. Nevertheless, the cards I selected should improve the deck by a significant margin.
First, let’s check the decklist, and then we’ll move to the cards.
Elven Council Decklist
The new cards might not be in the database yet. To find them check LotR Commander Decks Guide and MTG LotR spoilers.
Best 3 Cards for Elven Council Upgrade

The following upgrades are meant for the version of the deck that uses its face commander, Galardiel, Elven-Queen as its main one.
Imperious Perfect

There are many great Elf tribal reprints in this deck. However, among the missing ones, there’s Imperious Perfect, which is a card that’ll play perfectly with Galadriel, as it can make sure that you’ll have an Elf to trigger her ability every turn.
On top of that, all of you’re Elves get pumped with a +1/+1, which is without a doubt useful in this precon.
Illusion of Choice

The problem with voting cards is that you rarely get the choice that you want. But for a single blue mana, you can actually get the most favorable outcome. In some scenarios, this card can actually win you the game, or at least put you in a very favorable position.
On top of that, when the card isn’t useful, you can just use it as a cantrip to draw another card. As you can see, Illusion of Choice is a card with practically no downsides, and with a potential of being incredibly strong.
Leaf-Crowned Visionary

The final card that I’ll talk about today is another Elf lord. Besides buffing all of your team, it also provides you with much-needed card advantage, when you’re casting Elf spells. It’s nothing too fancy, but just a really solid two drop, that can do a lot of work.
Conclusion
That’s it for today. If time permits, I hope I will be able to update this Elven Council Upgrade Guide, so check back in a week or so. Until then, here are some other articles that might interest you:
Until next time, have fun with your upgraded Elven Council deck, and enjoy Magic.