Number 89 Diablosis the Mind Hacker
Number 89 Diablosis the Mind Hacker

Number 89: Diablosis the Mind Hacker – #YCSW-EN010

2 Level 7 monsters – Once per turn: You can detach 1 material from this card; look at your opponent’s Extra Deck and banish 1 monster from it, face-down. At the end of the Battle Phase, if this card destroyed a monster by battle: You can target 1 card in your opponent’s GY; banish it, face-down. If a card your opponent owns and possesses is banished face-down while you control this card (except during the Damage Step): You can banish cards from the top of your opponent’s Deck, face-down, equal to their face-down banished cards. You can only use this effect of “Number 89: Diablosis the Mind Hacker” once per turn.

Date Reviewed:  February 2nd, 2023

Rating: 3.63

Ratings are based on a 1 to 5 scale. 1 is awful. 3 is average. 5 is excellent.

Reviews Below:

KoL's Avatar
King of

Hello Pojo Fans,

Number 89: Diablosis the Mind Hacker is a young Throwback Thursday choice and was once a prize card for the Yu-Gi-Oh World Championships.

Generic materials needed for an Xyz Summon, Diablosis fits in perfectly with the Kashtira archetype strategy it’s almost like they were thinking about that archetype when they created this card years before. Banish a monster face-down from the opponent’s Extra Deck at the cost of a material is on the surface a good 1-for-1. Combined with tomorrow’s CoTD, this card within the archetype helps completely lock down your opponent with that one effect, but Diablosis has more.

If you happen to destroy a monster by battle with Diablosis (attacking strategy in Kashtira), you get another banish face-down of an opponent’s card, this time from their graveyard. Removing anything from the graveyard in today’s meta is critical to success as most meta decks employ their graveyard even more then their Main Deck. Diablosis can also banish cards from the top of the opponent’s Deck equal the to number of face-down banished cards your opponent has: it fuels its own banish effects with a third banish effect, wow. You are losing cards, at least three if you let Diablosis use all of its effects. The more cards you have banished, the worse Diablosis is going to be for you.

Easy to summon for anyone using Level 7’s, and a good monster outside the Kashtira archetype, Diablosis was meant to be used in that archetype to excel and be a dominant card.

Advanced-3.5/5     Art-4/5

Until Next Time

Crunch$G Avatar

Throwback Thursday this week is a Rank 7 that’s perfect for use in Kashtira, as well as a former YCS Prize Card: Number 89: Diablosis the Mind Hacker.

Number 89 is a Rank 7 DARK Psychic Xyz witht 2800 ATK and 1200 DEF. Strong ATK for a Rank 7, DARK is great, and Psychic is pretty good. Materials to summon are any 2 Level 7s, so completely generic. The first effect is a soft once per turn to detach a material from this card to look at the opponent’s Extra Deck and banish a card from it face-down, which is another great way for Kashtira to snipe the opponent’s Extra Deck down, and much easier than Unicorn since it doesn’t rely on the opponent. The second effect triggers at the end of the Battle Phase where it destroyed a monster in battle, letting you target a card in the opponent’s graveyard and banish it face-down, so more banishing, but the least used effect of this card more than likely. The remaining effect is the only hard once per turn and triggers when a card in the opponent’s possession is banished face-down, letting you banish the top cards of your opponent’s Deck face-down equal to the number of cards they already had banished face-down. A pretty insane effect to outright destroy the opponent’s Deck and make it difficult for the opponent to get their cards back and avoid any effects that trigger when banished since they’re face-down and can’t be verified by the game state. The fact Kashtira has access to destroy the opponent’s Deck by wiping a ton of cards more than likely while also locking the opponent’s board down is insane, but we’ll get to the board lock down tomorrow.

Advanced Rating: 4.5/5

Art: 3.5/5 It’s a computerized beast, which is more accurate to the OCG name.

Dark Paladin's Avatar

Throwback Thursday treats us to an (I believe) unreviewed card in the XYZ Monster Number 89:  Diablosis the Mind Hacker (what a name).  Rank 7, Dark/Psychic, great 2800 atk (meh 1200 def) and requiring any 2 Level 7 Monsters to be XYZ Summoned.  Detaching an XYZ Material (Once per Turn) grants you the peek at the opponent’s Extra Deck and a face-down removal of your choice, as we’ve seen this week, which is still an amazing and invaluable Effect.  It can also Target and remove a card (face-down) from your opponent’s Grave when it destroys a Monster in Battle.  (That’s not limited to Once per Turn, so if you have multiples of this out, or can attack/destroy more than once, that’s more removal).  Lastly, you can remove from play a number of cards from your opponent’s Deck (face-down) equal to the number of their face-down removed cards currently, when your opponent’s card in their possession is removed face-down.  Not during the Damage Step, and this last Effect is Once per Turn, but while this guy isn’t Kashtira, he makes sweet love to the removal mechanic of the Archtype.  Honestly, this guy should have a home in any Extra Deck with room that can make a Rank 7 XYZ given the generic Summon ability.  This guy definitely has some Deckout potential, and in the Theme alone, he might be worth running in multiples.  


In generic Rank 7 Toolbox and/or Tech, I’m giving this a 4/5

But In Kashtira, I gotta give this a 4.75/5 for what it adds to the Theme and how incredibly disruptive it is.  A couple turns on the Field mid to late game should be enough to win you a match.

Art:  6/5  This is even cooler than Monday, and it’s spooky awesome in more ways than one.  

Mighty Vee

Formerly an obscure tournament prize printed with little fanfare, Number 89: Diablosis the Mind Hacker quickly found itself on the radar when the Kashtira archetype was revealed. A Rank 7 DARK Psychic Xyz monster, there’s not particularly much to say about its properties, though it does benefit from the legions of Number support and can be a Rank-Up Magic target to summon D/D/D Duo Dawn King Kali Yuga. Diablosis only needs any two level 7 monsters, so any Rank 7 deck can make it easily, like this week’s Kashtira. Though it has a solid attack stat of 2800, it gets dragged down by a poor defense stat of 1200, though frankly it usually won’t battle much anyway. 

Diablosis has a bit of a salad of effects; its first effect is a soft once per turn, letting you detach an Xyz material to look at your opponent’s Extra Deck and banish one monster from it face-down. Much like Kashtira Unicorn, this can cheese many matchups, though depending on the deck it can also do pretty much nothing. Diablosis’s second effect is not once per turn, letting you banish a card from your opponent’s Graveyard face-down at the end of the Battle Phase if it destroyed a monster by battle that turn. This effect usually won’t come up; even though Diablosis has decent attacking stats, you’re probably in a bad position if the game’s not over after the Battle Phase and Diablosis is still sitting on the field. The last effect is the hard once per turn, triggering if one of your opponent’s cards (that they own and possess!) is banished face-down, letting you banish the top cards of their deck face-down equal to their number of face-down banished cards. With the context of tomorrow’s card, it’s not hard to see why people were terrified of Diablosis; once the ball gets rolling, your opponent’s deck will be deleted very quickly, with all of their zones locked to boot. Of course, it takes a hot minute for the ball to actually roll, and by then you probably would have already won through conventional methods. In Kashtira specifically, Diablosis’s main purpose is to help trigger their sub-boss monster and bring out their actual boss monster, which we won’t cover this week. Overall, a very niche monster, but in the one deck that uses it, it’s a solid pick.

Advanced: 2.5/5

Art: 3.25/5 I have no idea what’s going on, but I do find it funny that it’s red and Psychic like the Kashtiras.

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