Disney Lorcana · Set 10 Starter Deck
Whispers in the Well Amber & Emerald: Upgrade Guide
Simba and Megara lead a Boost deck: put cards facedown under your characters, and they quest for more, discard opposing cards, and play characters for free.
At a glance
Amber & Emerald · Boost value
How it plays out of the box
Boost costs ink to put the top card of your deck facedown under a character, and this deck's characters get much better once they have one. Megara and Flynn quest for 2, Webby joins in, and Simba can turn each Boost into a free character.
The deck spends ink on Boost instead of new cards, so you have to decide each turn whether to build up what you have or play more. That decision is why it's a 3 for difficulty.
The cards on the box
Simba - King in the Making
Whispers in the Well #20
Boost 3. Whenever a card goes under him, reveal the top card and play it free if it's a character.
Megara - Secret Keeper
Whispers in the Well #86
Boost 1. With a card under her, +1 lore and challengers make opponents discard.
Other cards to know
Flynn Rider - Spectral Scoundrel
Whispers in the Well #81
Boost 2. With a card under him, +2 strength and +1 lore.
Emily Quackfaster - Level-Headed Librarian
Whispers in the Well #80
Puts the top card under one of your Boost characters when played.
Webby Vanderquack - Knowledge Seeker
Whispers in the Well #9
+1 lore while you have a character with a card under it.
The rating: power 3, difficulty 3
Strong questers once Boosted, but the ink spent on Boost makes it slow to start.
Both numbers are TurnZero HQ's own editorial read, not an official Ravensburger rating. Power compares the deck out of the box against the other starter decks, not against a tuned tournament list. Difficulty is how much the deck asks of the person playing it.
What to cut first
Cut characters that neither have Boost nor care about cards under characters.
A Lorcana deck needs at least 60 cards, no more than 4 copies of a card with the same full name, and at most two inks, so every card you add means one you take out. The deck building rules →
Upgrade direction 1: More Boost payoffs
Winterspell and later sets added more cards that care about cards under characters, in both inks.
Scrooge McDuck - On the Right Track
Whispers in the Well #8
+1 lore to a character with a card under it when played.
Gaston - Frightful Bully
Whispers in the Well #2
Boost 2. Forces an opposing character to quest instead of challenge.
Webby's Diary
Whispers in the Well #31
Pay 1 to draw a card whenever you put a card under one of your characters or locations.
Donald Duck - Fred Honeywell
Winterspell #93
Each time you use a character's Boost, you may put a second card under it.
Upgrade direction 2: Go wide
Amber and Emerald's newer go-wide cards fit well, since Simba fills the board for free.
Woody & Buzz Lightyear - Best Buddies
Attack of the Vine! #28
Plays a cheap card for free when it quests.
Grandmother Willow - Ancient Advisor
Winterspell #13
A cheaper character every turn.
Paradise Falls - Exotic Destination
Attack of the Vine! #108
+3 lore while you have a character there.
Pluto - Determined Defender
Fabled #14
A self-healing Bodyguard.
Core or Infinity
As of October 2026, this deck is legal in Core Constructed, which uses sets 9 (Fabled) onward. It is also legal in Infinity Constructed, which allows every set. Core rotates once a year, so check a card's page before you buy into a list.
Every upgrade pick on this page is from set 9 or later, so all of them are Core-legal. Core Constructed vs. Infinity →
Buying the sealed deck? Search TCGplayer for the Amber & Emerald deck → The link goes through our TCGplayer affiliate link; see our affiliate disclosure.
Frequently Asked Questions
What does Boost do in Lorcana?
Once during your turn, pay the Boost cost to put the top card of your deck facedown under that character. Cards with Boost, and cards that care about cards under characters, get stronger once there's a card there.
Is the Whispers in the Well Amber and Emerald deck Core-legal?
Yes, as of October 2026. Whispers in the Well is set 10, inside Core's range.
Build the upgraded deck in TurnZero HQ.
Add the deck to the Deck Lab, make your swaps, and it checks the list against Core Constructed or Infinity as you go. Publish it to share the link. Free to start.
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