Gem-Knight Master Diamond Dispersion – #BLMM-EN020
3 “Gem-” monsters
During the Main Phase (Quick Effect): You can send this card from the field to the GY; Special Summon up to 3 non-Rock “Gem-” monsters with different names from your Extra Deck and/or GY, ignoring their Summoning conditions, also for the rest of this turn, you cannot Special Summon from the Extra Deck, except Fusion Monsters. When your “Gem-Knight” Fusion Monster is destroyed by battle, while this card is in your GY: You can Special Summon this card. You can only use each effect of “Gem-Knight Master Diamond Dispersion” once per turn.
Date Reviewed: August 29th, 2025
Rating: xx
Ratings are based on a 1 to 5 scale. 1 is awful. 3 is average. 5 is excellent.
Reviews Below:
King of
Lullaby
Hello Pojo Fans,
Gem-Knight Master Diamond Dispersion is the newest Fusion for the Gem-Knights and ends our week of coverage on them.
Diamond Dispersion is one fo the reasons why Gem-Knight may be staying around Tier 1 despite the more popular and played archetypes currently in the meta. Rock and Level 9, there won’t be any Rank 8 plays with Diamond Dispersion but you won’t need them. Carries typical stats for that Level, but again, it is the effect(s) that carry this monster to boss status and makes it an anchor for the archetype strategy and hopeful success.
Easily summoned using any three Gem- monsters you’ve got available, Diamond Dispersion can send itself to the grave to Special Summon any three non-Rock Gem monsters from the Extra Deck or grave. While you are not limited to just Fusions on the Special Summon, you are locked into Fusions from the Extra Deck for the rest of the turn. None of the monster’s effects are negated, and you are ignoring summoning conditions, both great effects to be included in this effect. Trading a 3000ATK monster for Lapis and Lady Brilliant aren’t involved with this effect because they are two of the best Gem-Knight Fusions and it would be pretty broken to be able to Special Summon them without restrictions, same with Master Diamond and Phantom Quartz. Of the Fusions you do get to summon, Topaz (18000ATK) can make two attacks and does burn equal to a monster’s original ATK that it destroys, Seraphinite can grant you a second Normal Summon, Ruby can pop a Gem-Knight to gain its ATK on top of its own and does piercing, Prismura can send a Gem-Knight from the hand to the grave for spot removal of a monster, Rose Diamond offers some protection when an opponent activates a card or effect, and Amethyst can pop all Spell/Traps back to the hand if sent to the grave.
While Diamond Dispersion can only activates its effects once per turn, if one of your Gem-Knight Fusion Monsters is destroyed by battle and sent to the grave while Diamond Dispersion is in the grave, you can Special Summon Diamond Dispersion back and use that effect again. As a Quick Effect, it can be used either turn and trade itself to block attacks on your opponent’s turn, as well as put out Rose Diamond for that interaction that was mentioned. On your turn though, you can slam a smaller Gem-Knight Fusion into an opponent’s monster, bring back Diamond Dispersion, pop it for three more to go for five, and go for game after you deal with the last monster your opponent has. Gem-Knight Aquamarine can do just that: popping a monster back to the hand when it is sent to the grave. At 1400ATK as well you’ll take some LP damage, but if it bounces the final monster and then allows you to bring back Diamond Dispersion and OTK, it is all worth it. You don’t currently have any Link or Xyz Gem-Knights you can summon with Diamond Dispersion but despite that, you have enough to OTK reliably.
Gem-Knight Diamond Dispersion is an upgrade to an above average monster in Master Diamond. If you can’t OTK using Diamond Dispersion, you will aim to Special Summon the Rock Fusions you couldn’t with Diamond Dispersion to solidify your turn. Just make sure to leave a Fusion on the field so you can summon Diamond Dispersion on your opponent’s turn to interact with their plays.
Advanced- 4.5/5
Art- 4/5
Until Next Time,
KingofLullaby
Crunch$G
The week ends off with a retrain to Master Diamond, becoming Gem-Knight Master Diamond Dispersion.
Master Diamond Dispersion is a Level 9 EARTH Rock Fusion with 3000 ATK and 2600 DEF. Good stats, though a 100/100 boost to Master Diamond’s original stats is funny, and being an EARTH Rock would have been better for Gem-Knights if we had something like Block Dragon legal in the TCG, but it’s still fine. Fusion Materials are any 3 Gem- monsters, which is something that can easily be done in Gem-Knights and lets Gem-Armadillo get more value now being able to be a Fusion Material for a stronger Fusion. During the Main Phase, you get a Quick Effect to send this card from the field to the graveyard to Special Summon up to 3 non-Rock Gem-Knight Fusions from your Extra Deck and/or graveyard, ignoring summoning conditions, also for the rest of the turn you can only summon Fusions from the Extra Deck. This level of swarming from the Extra Deck is great. For building a board, you got Lady Rose Diamond for interaction on the opponent’s turn, Aquamarine to combo with I:P Masquerana for bouncing, and probably Prismaura to destroy a card. If you plan to OTK, Prismaura and Lady Rose Diamond are still good choices along with Ruby for its massive ATK boosting potential and piercing, along with Topaz to double attack and burn for the ATK of monsters it destroys in battle. You can’t summon Lady Lapis Lazuli off this, so again it’s clear they don’t want Gem-Knights to just FTK anymore. When your Gem-Knight Fusion Monster is destroyed by battle while this sits in the graveyard, you can revive it, which lets you once again use the first effect to summon 3 more Gem-Knights from the Extra Deck since it doesn’t have to be Fusion Summoned to use that effect. HOPT on both effects, as you can expect. Master Diamond Dispersion is an amazing card for swarming the field with Gem-Knight Fusions to accomplish whatever it is you need to do, as long as that is not the FTK seemingly. You can make a decent first turn board with Gem-Knights now, or go second and play board breakers to OTK with the big damage some of the Gem-Knights can do. Extra Deck is crammed, so a single copy works, but it’s basically a win-con for Gem-Knights if you get it out.
Advanced Rating: 4/5
Art: 4/5 Master Diamond has some diamonds coming out of him now.
Mighty
Vee
Not willing to be stuck at Limited any longer, the creatively-named new boss (well, sub-boss, more accurately) of the Gem-Knight archetype ends the week, Gem-Knight Master Diamond Dispersion. It’s still a level 9 EARTH Rock Fusion monster, though notably it only requires 3 Gem- monsters, rather than 3 Gem-Knights specifically. This is important! You’ll be able to use Gem-Armadillo as a Fusion material; if you’ve been following the whole week, you’ll know Gem-Armadillo is key combo piece and combo starter, so it’s a great monster to shuffle back with Gem-Knight Phantom Quartz to summon Diamond Dispersion. Alternatively, you can just use Gem-Knight Dispersion (with the deck Fusion live, of course) to make Gem-Knight Lady Brilliant Diamond and cheat it out, or just summon Diamond Dispersion directly. Statwise, Diamond Dispersion is a very slight improvement over Master Diamond, bumping up both stats by 100 for a total of 3000 attack and 2600 defense. Can’t complain about becoming average!
The original Master Diamond had a simple copy effect, which was deceptively deadly when you could copy Gem-Knight Lady Lapis Lazuli and burn your opponent even more, landing it a warm spot on the banlist. Fortunately, Diamond Dispersion has a completely different set of effects, 2 hard once per turn effects in fact. The first is a Quick Effect, letting you send Diamond Dispersion from your field to the Graveyard to Special Summon 3 non-Rock Gem- monsters with different names from your Extra Deck or Graveyard (ignoring summoning conditions, of course), locking you into Fusion monsters from the Extra Deck for the rest of the turn as well. While it is a strong effect, it’s not as broken as it sounds because most Gem-Knights are actually quite poor at disruption and combo potential. Its true purpose is to enable Gem-Knight as a going-second OTK strategy– you’ll swarm the field with the offensive Gem-Knights, like Gem-Knight Ruby and Gem-Knight Topaz, to hopefully break through and wipe out your opponent’s Life Points. While it may seem pretty stupid coming off the heels of Tenpai, the most efficient OTK deck in history, it’s surprisingly effective considering Gem-Knight’s going-second tools like Gem-Knight Quartz and Scatter Fusion, as well as their fitting ability to use Shaddoll Fusion. Not being able to summon Rocks is a lame restriction, but I guess they deemed it necessary since otherwise you could summon Lapis Lazuli and the original Master Diamond– not that they’d do much when your burn damage is HALVED. And, unfortunately (or fortunately, depending on your perspective), you cannot summon enough level 5 fodder for Number 67: Pair-a-Dice Smasher, so summoning Diamond Dispersion going first is almost pointless. Speaking of pointless, Diamond Dispersion’s other effect triggers when your Gem-Knight Fusion monster is destroyed by battle, letting you Special Summon it from the Graveyard. Maybe the intent is to crash a weak Fusion like Gem-Knight Aquamarine to revive it, I don’t know, but in any case, I don’t like it! I think this is best saved as a Hail Mary for rebuilding your board if the OTK fails, then you can use its effect to summon even more Fusions. As a going-first tool, Diamond Dispersion is quite lackluster, but I appreciate that it’s quite potent when going second, which is just fine for me. You’ll still run it and a suite of combat-oriented Gem-Knights, because what else are you gonna run? Pair-a-Dice is just 1 slot.
+Powerful effect that can swarm the field for easy OTKs
+Easy to summon through either Gem-Knight Dispersion or Gem-Knight Phantom Quartz
-Bizarre and outdated revival effect that relies on battle destruction
-Non-Rock and name restriction severely limits combo potential going first
Advanced: 3.5/5
Art: 3.25/5 It looks fine, but the original Master Diamond looked a lot more regal. And had a cool sword!
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