Tuesday
 
The Mermail Archtype is slaughtering the competitive scene right now, and this is a very big reason as to why.  I may just be one Yugioh player, but don't be surprised to see Mermail take a serious hit on the March Ban List.  Mermail Abyssgaios is a Rank 7 XYZ Monster, Water attribute, Aqua type, with a sound 2800 attack and a not-so-sound 1600 defense.  This Monster is XYZ Summoned with two Level 7 Water Monsters, appropriately enough.  While face-up on the Field, with XYZ Material, no Monster Level 5 or higher can attack.  Obviously this doesn't effect our XYZ Monsters, having Ranks as opposed to Levels, but there aren't a great deal of Tribute, Synchro, and others that this effects, but it's still really good.  
 
Also, by discarding an XYZ Material from this card, all face-up Monsters your opponent currently controls have their effects negated until the End Phase of the turn, so long as they have attack less than this card.  That's really good too, but unfortunately, if only for one, won't effect an opposing Black Luster Soldier.  Abyssgaio's effect that negates the effect of opponent's Monsters doesn't target, I want that on record, but this guy is certainly a powerhouse.  One is likely all you need in your Abyss Deck, but as said, he's one of the reasons you're wrecking the scene.
 
Ratings:

Traditional:  3.25/5  Honestly, this Deck isn't bad in Traditional, and neither is he.
Advanced:   4.25/5 
Art:  5/5

Abyss Rising’s legacy is in giving rise to the Water monsters. Fortunately, it also introduced a number of Xyz monsters that were sorely needed. On today’s docket is Mermail Abyssgaios. It requires 2 level 7 Water monsters to summon, but that is the levels of our Water boss monsters, so it is a perfect fit in an Atlantean/Mermail deck. All you need to do is to get any combination of Mermail Abyssmegalo, Poseidra, the Atlantean Dragon, and Gungnir, Dragon of the Ice Barrier.
 
Lemuria the Forgotten City can also aid in summoning Mermail Abyssgaios by increasing the levels of the Water monsters on the field. Lemuria will also increase Abyssgaios’s attack to 3000 and allow it to negate more monster effects. Abyssgaios can not negate monster effects that activate in the hand, grave, or banished area like Honest and Effect Veiler, but it can negate effects that occur on the field like Ryko and Chaos Sorcerer.
 
Now let’s take a look at all of the amazing things that Mermail Abyssgaios can do. With 2800 in attack, it can survive most battles. Top that off with the fact that level 5 or higher monsters can not attack while it has material on it and half of your worries go away. Then add in the ability to negate the effects of face-up monsters your opponent controls who’s attack is less than Abyssgaios and you reduce your worries to mainly spells and traps.
 
If you are playing a Mermail or Atlantean type deck, then you will want Mermail Abyssgaios in your extra deck.
 
Traditional: 2/5
Advanced: 3/5

Today we look at Mermail Abyssgaios, an Xyz monster that makes me wanna play the God of War franchise over again. While it has Xyz materials on it, level 5 or higher monsters cannot declare an attack, that is a double-edged sword as your monsters are affected as well. But most level 5 or higher monsters are usually around for their effects most of the time. AH, but Abyssgaios has an answer to that, as once per turn, during either player's turn you can detach an Xyz material from this card to negate the effects of all face up monsters your opponent currently controls that has less ATK than this card until the end phase of that turn, so that can stall any monster effect that can get rid of with less ATK than Abyssgaios, such as Ryko or even Chaos Sorcerer. Getting out this huge ATK monster is not hard as you can use Abyssgunde and Abyssmegalo for another Abyssmegalo and use Abyssgunde's effect to revive the Abyssmegalo you discarded. Even Galaxy Queen's Light can be used as well. This card is good for making your opponent having to waste resources to get rid of this guy as it shuts down all level 5 and higher monsters with less ATK. Although there is Black Luster Soldier....

Traditional: 2
Advanced: 3