Gho Fish Mk. 2 (Ghoti Pure)

My current build of Ghoti pure with the support recently added to Master Duel. The most basic combo with this deck is:

summon lifeless leaffish > pitch shif > banish shif. Then on your opponent's turn, shif comes back and you can synchro into arionpos > banish psiics > psiics banish the shif > psiics search + banish zep > zep effect to quick synchro into white aura whale or askaan

this gets you a board wipe or spot removal as needed, plus a search (that you will usually use to get snopios), but you can get better end boards depending on what you open.

If you have paces and beautunaful or lifeless leaffish, you can set up a board that lets you also summon Ghoti of the Deep Beyond during your opponent's turn by normaling paces and using its effect to summon the other from hand (then do the 1 card combo), giving you a second board wipe that banishes everything on their field.

If you can make arionpos during your turn, you usually want to banish psiics to get another body on the field plus a free search for a tuner or keaf, depending on if you have a way to make deep beyond next turn already or not. For example, if you have paces, lifeless leaffish, and Assault synchron in hand, you can do:

Normal Paces > banish Paces to summon Leaffish > Leaffish send Shif to grave > Special Assault Synchron from hand > Synchro Summon Arionpos > Arionpos banish Psiics > Psiics banish Shif to Special Summon itself > Psiics search keaf, then banish Psiics > Keaf special summon itself

You want Psiics to banish itself to give Keaf a good target for its effect during your opponent's turn, plus we run two Psiics so there really isn't a cost for this set-up.

Some notes on this build:

Keaf looks kinda like an extender but it's not an extender, it's an end board piece. I think that fish lamp was originally made with the intention of being summoned off of Keaf + a ghoti tuner and then you were supposed to use fish lamp for more plays, but honestly the only realistic time you would want to do that is if you were running Superancient Deepsea King Coelacanth. I think the Coelacanth strategy is pretty strong in ghoti now since coelacanth is searchable off of Psiics, but I haven't tested that version of the deck yet so I'm not sure if it would actually be better than pure Ghoti.

We're running two psiics because we really want to have a copy of it in deck to banish off of gold sarc or arionpos. It's not the end of the world if we draw it, but it means that you'll have one less body during your opponent's turn, which can be important if they have something like a super poly or a fallen of albaz

This build is a WIP and I'm not 100% sold yet that the field spell is better than Piri Reis Map. Map gets you to a starter more consistently than the field spell but the field spell can really help you come back from your opponent wiping your board and sending your stuff to grave. I might swap back to Piri Reis Map in the future.

Strike Bounzer comes up occasionally as a way to free zones when you have a board that is pretty much exactly Lifeless Leaffish + Arionpos + Psiics + Keaf, Paces, and Shif all banished. Although granted I put Strike Bounzer in before I realized Supay has a synchro lock on it, so there's a decent chance that the only way to get to that end board requires locking yourself to synchros, in which case you should swap out Strike Bounzer for probably I:P Masquerena or a third copy of Arionpos or something

In a pinch you can use Crossout Designator as an extender. Since it only negates effects for one turn, you can use crossout and send a ghoti tuner, and then next turn it will use its effect from Banishment to summon itself back to the field.