"Quintet Wall" (クインテットウォール Kuintetto Uōru) is an official term introduced in Booster Set 14: Brilliant Strike, which refers to cards with a special ability to guard during an attack. During the deck contruction, your deck can only contain up to four "Quintet Wall" cards due to the "Sentinel" ability they have.
Normally, when a "Quintet Wall" unit is placed on (GC) from hand, if the player has a vanguard of the same clan, by paying Counter Blast (1) as cost, he or she may reveal the top five cards from his or her deck, then calls all cards of the same clan from among them to (GC), and the rest of cards are put into the drop zone. After that, for each unit called, the player chooses which unit that is being attacked will be guarded with each of those units.
Starting from Booster Set 16: Legion of Dragons & Blades, you no longer are required to have a vanguard of the same clan, and you may call cards of any clan to (GC) with this effect due to Clan Fight regulations making those restrictions redundant in card texts. As of G Booster Set 2: Soaring Ascent of Gale & Blossom, Quintet Walls have R rarity to encourage players to make cheap decks and to give it an advantage over perfect guards, which is another option for sentinels and were becoming more easy to get due to their inclusion to G-trial decks.
G Booster Set 7: Glorious Bravery of Radiant Sword introduces a new variant of Quintet Walls, whose ability only be used during the attack where your vanguard is being attacked. However, they include a bonus or another ability in addition to call further guardians during the attack. Duo Create Quill, Ilya is another new variant of Quintet Wall, whose ability only can used by having a vanguard of its respective Sub-Clan.
What are the Quintet Walls? (CotD 31/5/2016)
The "Quintet Walls", as the name "five walls" states, is the general name for the ability "call five cards from the top of your deck to (GC)". All of them have the ability Sentinel, and only up to four cards of "Perfect Guards" and "Quintet Walls" in total can be contained in a deck. Unlike "Perfect Guards" which can completely shut out G units' powerful attacks with 2 cards from hand, inclusion and usage of Quintet Walls require some skills, and Quintet Walls can be said as Sentinels suited for mid-ranked players or above. Unlike "Perfect Guards" which is useful for stopping vanguards' powerful attacks, Quintet Walls are useful for stopping early-game attacks and rear-guards' attacks reinforced by triggers with only 1 card in hand. Also described in "R&D Talk", for decks which are "aggressive but poor at replenishing cards", adding 1-2 Quintet Walls can reduce damage while preserving cards in hand.
In the past, there had been an "Aqua Force" centered around "Ripple" using 2 Quintet Walls. Quintet Walls are effective Sentinels for decks that consider early-game offense and defense, and we suggest you to examine them.
List of Quintet Wall Cards
- Despite called Quintet Wall, not all of the cards call five cards from the top of the deck. Secret Elsie, Stilling Jewel Knight, Estelle and Dudley Cheers, Linsey calls variable number of cards instead.