B.E.S. Crystal Core | Decks and Tips

This page notes details of B.E.S. Crystal Core (WATER/Machine/Effect Monster) : decks, tips, effect and rulings. Learn and enjoy playing Yu-Gi-Oh! Duel Links!
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update 04/09/2016

B.E.S. Crystal Core

B.E.S. Crystal Core
Monster TypeMachine
Card typeEffect
Card Effect TypeTrigger Effect / Continuous Effect / Ignition Effect
Related to ArchetypesKonami Arcade Games


When this card is Normal Summoned, put 3 counters on it. This card cannot be destroyed by battle. If this card attacks or is attacked, remove 1 counter from this card at the end of the Damage Step. If you cannot, destroy it. Once per turn, during your Main Phase, you can change 1 face-up Attack Position monster your opponent controls to face-up Defense Position.

How to get / rarity

PackGeneration Next [SR]
Level-up reward--
Victory against--
Card trader--




  • This card can't be destroyed by battle.
  • It can switch 1 of your opponent's face-up attack position monster to defense position once during your Main Phase.


  • Defense is pretty low for a monster that requires a tribute.
  • This card gains 3 counters when summoned. It loses 1 counter during the end of Damage Step when it attacks or attacked. It is destroyed when you can't remove any counters.


Soul Exchange

Summon B.E.S. Crystal Core by using Use Soul Exchange. Tribute your opponent's monster instead of yours at the cost of not conducting your battle phase at the turn when this card is activated.

Treeborn Frog

You can set Treeborn Frog to defend from attacks and Special Summon it on your next turn to use it as a tribute for B.E.S. Crystal Core.

Summon without a Tribute

These cards can be used to Summon B.E.S. Crystal Core without a tribute. A Legendary Ocean reduces the level of all WATER monsters in both players' hands and on the field by 1 which makes B.E.S. Crystal Core level 4. Pay 1,000 Life Points instead of tributing a monster by using Mausoleum of the Emperor.




ActionsChanges Battle Positions
Monster/Spell/Trap categoriesDestroys itself
Attack categoriesCannot be destroyed by battle


Gradius III
remember this guy from gradius 3 for the snes
<< Anonymous(Gradius III)
Elerson Reply
Gradius II for Nes console system:

B.E.S. Crytal Core and B.E.S. Tetran
<< Anonymous
Just a Guy Reply
Mind. Blown.
<< Anonymous(Gradius III)
Anonymous Reply
I'm legitimately surprised some people don't know about this until now XD
<< Anonymous(Gradius III)
Anonymous Reply
I want a Gradius event from Konami.
If banished by SSA is this card reset its counter or not ?

3 Counter seems very little.
<< Anonymous
Anonymous Reply
The counters will be reset.

Any kinds of counters are reset if the monster leaves the field then return.
Any good substitutes for this card in a SSA deck?
<< Anonymous
Anonymous Reply
It, Fisherman 2 and Plesion are really the only particularly good Level 5 WATERs in Duel Links right now. I guess Giga Gagagigo would be a distant third. Maybe Shark Cruiser is worth considering, though I personally wouldn't. You could go Bottom Dweller for the meme value I suppose.
yasuo main
new pack with some water support + this gonna be boom
<< Anonymous(yasuo main )
Anonymous Reply
It's a good replacement for people who don't want to get 3 legendary fisherman 2s.
Holy 🔥. The B.E.S cards are from Gradius and Gradius is a monster! O H M Y G O D D D D D D D D D D DD
B.E.F Zelos and Boss Rush would make B.E.S deck absolutely crazy.
<< Anonymous
Anonymous Reply
wouldnt happen
<< Anonymous
Anonymous Reply
Lmao those things would be hella broken in speed , never EVER going to happen
so big core is actually the worst BES
<< Anonymous
Anonyboy Reply
You've never heard of BES Covered Core, have you?
Probably won't happen, but if they get the b.e.s. field spell they will be unstoppable
Legendary ocean op
<< Anonymous
Guigeek Reply
YES !! And with Giga Gagagigo, Skreech and Abyss Warrior, Lvl 4 Aqua decks are becoming really intersting.
Good antimeta card for Red eyes and Phoenix!
gosh b.e.s. treeborn frog COULD be a thing with no super rush ur pretty much screwed
<< Anonymous
Anonyboy Reply
I, for one, welcome our new B.E.S. overlords.
<< Anonymous
Anonymous Reply
it's not really that good, angmarl, plesion etc. are just plain better for treeborn right now
Kaiba Boy
Econ monster form

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Comments (updated every hour)

Where is six samurai?
Looks like someone haven't watched Season 4 of GX Anime. Lul
Looks like a good card.Maybe water deck users will like it.
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