Of course, there might be some other cards that you'd put on your personal best-of list. Alas, narrowing it down to ten means we can't include all of the strong cards.
At first, Crystal Wing Synchro Dragon seems like a very expensive synchro monster as it requires a tuner and a non-tuner synchro monster to be summoned onto the field.
However, paying this price is definitely worth it. Being able to negate a monster's card effect, destroy it and gain attack that is equal to its effect is really something special. Of course xyz and link monsters aren't that endangered, but nevertheless there are still countless others that may be affected. Moreover, the status of a quick effect monster offers the ability to overcome annoying hand traps like Honest. And, as if that wasn't enough, it even gains the attack of a level five or higher monster that is attacked by it. Considering all these benefits, this card is undoubtedly one of the strongest synchro monsters of all time.
Decks which mainly rely on spell cards should be prepared for the worst when Naturia Beast enters the field. It is able to constantly negate effects of any spell cards, which can slow down certain gameplays enormously. The price of sending two cards from the deck to the graveyard appears ridiculously low in comparison to the lasting impact this beast may have. Moreover, the effect isn't limited to once per turn, which actually makes this card so strong. As spell cards are played way more often than traps nowadays, this card still offers an interesting option when it comes to playing against certain decks. The only disadvantage is that it requires earth monsters in order to be summoned. Therefore, it is not an option suitable for all kinds of decks, but still remains one of the strongest synchro monsters of all time.
Gaining card advantage over your opponent is an important aim in the game. T.G. Hyper Librarian has a very simple effect that is incredibly strong at the same time. Each time one of both players summons a synchro monster, you can draw a card. Considering the fact that some decks banish multiple cards in order to be able to draw one or two others, it is pretty obvious why this card was banned in the past. With appropriate protection, this card was extremely annoying to the opponent as playing against the Librarian often required to summon a synchro monster to get back into the game. As a consequence, its owner received a free card, so the result of the game could change in an instant.
This mighty dragon enters the field with imposing 3,000 attack and lets everyone know that it is time to play with strong monsters. This is because any monster with less attack than Scarlight Red Dragon Archfiend that has been special summoned can be destroyed once per turn. This is an excellent way to get rid of the opponent's monsters in order to avoid multiple upcoming summons. The likelihood for the other player to have monsters with more than 3,000 attack on the field is rather low as well, which may therefore result in a complete board wipe.
What also makes this card very strong is the fact that it can be summoned with any generic tuner and non-tuner. Apart from that, it belongs to the eight-star synchro monsters that are very common. The burn damage for each destroyed monster is the cherry on top. Even your own destroyed monsters can contribute some additional burn damage, and after obliterating your opponent's monsters, you can move on to a powerful attack. This is a great way to possibly bring the duel to an end—isn't it?
Do you want to get rid of strong hand traps and other cards? Then PSY-Framelord Omega could be beneficial to your plans. First of all, this synchro monster doesn't need specific feeding material to appear on the field. Second, its ability to banish a face-up card from your opponent's hand makes it extremely powerful. Finally, being able to recycle itself and other cards from the graveyard rounds off this awesome package.
Just imagine your opponent's face when they are about to make strong plays and you just prevent them from doing anything harmful to you by banishing one card from their hand for the turn. You may take the other player by surprise and change the gameplay by interrupting their game. Moreover, with the right strategy, you can establish powerful loops with other monsters very easily. These aspects turn this synchro monster into one of the strongest to have ever been part of the game.
No synchro monster list would be complete without some cards of the ice barrier theme. I decided to put two of them in the list because they are incredibly strong. Let us start with Trishula first: This dragon is definitely very dear to a lot of people's hearts. Trishula, Dragon of the Ice Barrier is the best level nine synchro monster ever because it used to rule over the formats like no other synchro monster before. People always hoped for the best when new ban lists were released as they wanted to access Trishula's insanely powerful effect that enabled them to banish three different cards of the opposing player.
Neither hand nor graveyard and field could withstand its devastating effect, which could be activated more than once. In fact, it was not limited to one single turn. When the opponent has to witness its successful summoning onto the field, they can only adapt by throwing all their plans overboard. First, their strongest monster on the field has to leave, followed by a strong card from the graveyard and a random card from their hand. The only reason why this card isn't listed further at the top is the very expensive summoning cost.
When this card came out, field spells didn't play an important role in Yu-Gi-Oh! as most of their effects were just average or even worse. However, this changed over the course of time, and when field spells enabled you to search cards and add them to your hand, Ancient Fairy Dragon became broken. On the one hand, you can summon a level four or lower monster and on the other hand, you can activate strong field speeds and destroy them. Then you can search for another strong field spell and activate it again to make use of its effect. In addition to this clever gameplay, you received 1,000 life points. So when you gained control over multiple Ancient Fairy Dragons on the field, you had the ultimate search engine for strong combinations. This forced Konami to ban this mighty dragon.
The best thing that may ever happen to a player is to be able to hide behind an extremely powerful boss monster that can negate almost anything. Borreload Savage Dragon offers a package that can be hardly overcome by anyone. First, it gains half of the attack of the equipped link monster, so the chance of reaching 4,000 attack or more is very high. Additionally, this dragon can negate any effect, and if you assume that it swallowed a link two or higher monster, you can make use of this effect even more than once. Should you be able to feed this hungry dragon with a link monster from the graveyard, it gets extremely hard for the opponent to deal with it. Therefore, this card dominated the meta and stands out as one of the best synchro monsters ever!
We all know Pot of Greed, right? What makes this card one of the strongest synchro monsters ever is the fact that you can gain an advantage of two cards when summoning it. On the one hand, it is a synchro monster, but on the other, it can also be used as a tuner for another monster. Once it enters the field, you can therefore add a World Legacy card to your hand immediately and then use Ib the World Chalice Justiciar for a link or synchro summon in order to special summon a World Chalice monster onto the field. As it is a generic five-star monster, it was easier to play than a lot of other synchro monsters because you didn't necessarily need to build a deck around it to make use of its strength. Considering the fact that this card came out in the link era, it makes it even stronger, so there is a reason why this card is currently banned.
The next monster that really shaped formats was Brionac, Dragon of the Ice Barrier. The original effect goes as follows: "You can discard any number of cards to the Graveyard to target the same number of cards on the field; return those targets to the hand." As a generic level six monster that is incredibly easy to summon, an effect not limited to once per turn, and the option to return multiple cards from the field to the hand is so overpowered that I won't dive any deeper into it. I just admire the poor players of past times who had to face this force of nature making it one of the strongest dragons ever printed.
Finally—the champ! This card was so powerful it had to undergo a redesign in the course of which the original effect was changed. Although this card tends to be forgotten by some, I strongly feel that Dark Strike Fighter is undoubtedly the strongest synchro monster ever. You just need to summon it onto the field with generic material and then start your combinations: Use cards like Cannon Soldier and Mass Driver for instance, to increase the inflicted burn damage and sacrifice as many monsters as needed to FTK your opponent. The effect was not limited to once per turn originally, so you could just use it as many times as you wanted. Due to its many great effects, if still available and allowed to play today in this manner, this card would be feared by anyone as it could mean the end of the game in a matter of one turn!
We made it! What are your thoughts on the ranking and what are other strong synchro monsters in your opinion? Let us know in the comment section!
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