![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013718/gem-knight-lady-brilliant-diamond-blmm-en145-secret-rare-1751013721.webp)
Description
| Set: | Battles of Legend: Monster Mayhem |
| Card type: | Fusion/Effect Monster |
| Rarity: | Secret Rare |
| Attack: | 3400 |
| Defense: | 2000 |
3 “Gem-Knight” monstersMust first be Fusion Summoned with the above Fusion Materials. You can only Special Summon “Gem-Knight Lady Brilliant Diamond(s)” once per turn. Once per turn: You can send 1 face-up “Gem-Knight” monster you control to the Graveyard, and if you do, Special Summon 1 “Gem-Knight” Fusion Monster from your Extra Deck, ignoring its Summoning conditions.
![The White Stone of Ancients [RA04-EN267] Platinum Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/the-white-stone-of-ancients-ra04-en267-platinum-secret-rare-1751013647.webp)
![Lullaby of Obedience [RA04-EN085] Prismatic Ultimate Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/lullaby-of-obedience-ra04-en085-prismatic-ultimate-rare-1751013647.webp)
![Summoned Skull [RP01-EN024] Super Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/summoned-skull-rp01-en024-super-rare-1751013647.webp)
![Maliss Q Hearts Crypter [CRBR-EN020] Collector’s Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/maliss-q-hearts-crypter-crbr-en020-collector-s-rare-1751013647.webp)
![Spell Shattering Arrow [SBC2-ENA17] Common](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/spell-shattering-arrow-sbc2-ena17-common-1751013647.webp){kind=icon}
![Vicious Astraloud [MP24-EN083] Prismatic Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/vicious-astraloud-mp24-en083-prismatic-secret-rare-1751013647.webp)
![Cyber Dragon Core [RA04-EN013] Super Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/cyber-dragon-core-ra04-en013-super-rare-1751013647.webp)
![Schwarzschild Infinity Dragon [MZTM-EN013] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/schwarzschild-infinity-dragon-mztm-en013-secret-rare-1751013647.webp)
![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013648/gholdengo-ex-164-131-scarlet-violet-prismatic-evolutions-1751013651.webp)
Gholdengo ex (164/131) [Scarlet & Violet: Prismatic Evolutions] ![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013652/the-quest-for-excalibur-puy-du-fou-nintendo-switch-1751013656.webp)
The Quest For Excalibur: Puy Du Fou - Nintendo Switch ![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013652/summer-stars-2012-wii-1751013656.webp)
Summer Stars 2012 - Wii ![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013791/ultimate-guard-boulder-100-guild-summit-azorius-1751013795.webp)
Ultimate Guard Boulder 100+ - Guild Summit (Azorius) ![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013656/baby-green-slime-080-promotional-cards-1751013660.webp)
Baby Green Slime (080) [Promotional Cards] ![Gem-Knight Lady Brilliant Diamond [BLMM-EN145] Secret Rare](https://www.deckrelic.com/wp-content/uploads/2025/6/1751013644/tropico-5-playstation-4-1751013647.webp)
Tropico 5 - Playstation 4
Reviews
There are no reviews yet.