The Gouki deck focuses around using the Gouki's GY effects (add another to hand) along with the Knightmare Links to extra-link (through Firewall).
Zones (for board placement):
EM EM
M M M M M
---back row ---
Combo: Requires 1 Gouki + 1 other card that can get you to Isolde, or 2 level 3s
1.) Get to Isolde; you can do this through 2 level 3's --> going into invoker --> summoning suprex --> going into Isolde; or by having a monster that can SS + one gouki.
Board Placement:
Isolde --> goes in right extra monster zone
2.) You Link your 1 Gouki + other card/Invoker --> go into Isolde; CL 1 Gouki add of GY eff (add headbatt off of this Gouki's eff), CL 2 Isolde (add that Gouki that just hit the Grave, off isolde).
3.) Dump Phoenix Blade, or Moon Mirror (if you draw Phoenix Blade), and SS octostretch from your Deck. Then activate Headbatt's eff in your hand --> discarding the Gouki you added off isolde and SS Headbatt to the field next to octostretch. Then special summon knightmare cerberus (you do not need phoenix blade in hand at this point) using octostretch + headbatt --> CL 1 Gouki #1, CL 2 Gouki #2 (doesn't matter the order) --> add a Gouki you haven't used this turn (so in this case it can't be headbatt/octostretch/gouki used to get into Isolde) and Gouki rematch.
Board placement:
Knightmare Cerberus, since Isolde is in the right monster zone, should be summoned to the Left Downward Zone of Isolde.
4.) Activate rematch, targeting headbatt and octostretch to Summon them to the field.
5.) Special Summon Firewall dragon to the left of Cerberus (its arrows point up to an empty spot and left, the only zone firewall should be going in), using Isolde + Octostretch + Headbatt (
remember that octostretch and headbatt were SS from grave by the effect of Gouki Rematch).
6. Now add the phoenix blade to your hand (if it was in your GY) by banishing 2 warriors (Isolde is fine to banish at this point, but
DO NOT banish octostretch)
Board Placement:
In the spot that is left to Cerberus you have summoned Firewall, this zone is right underneath the Leftmost Extra monster zone (you had used the rightmost to SS Isolde).
7. Special Summon Knightmare Mermaid, using Knightmare Cerberus, above firewall dragon in the Leftmost Extra monster zone --> activating Mermaid as CL 1 and Firewall as CL2 (if you mess this up, combo dies). For CL1, discard phoenix blade --> SS Iblee (this Special Summon happens after Firewall's effect resolves), CL2 (Firwall Eff) Special Summon the Gouki you had added when you made Knightmare Cerberus back in Step 3.
Board Placement:
Knightmare Mermaid in leftmost extra monster zone, above firewall dragon, with knightmare corruptor iblee & random gouki being on your side of the field.
8. Add back the Phoenix blade to your hand (banish 2 warriors from the GY,
NOT octostretch) and then Special Summon Knightmare Goblin to the right of firewall (in the middle main monster zone) activating Firewall Dragon as Chain Link 1, the Gouki that hits the GY's eff as Chain Link 2, and Knightmare Goblin as Chain Link 3 (don't use iblee's effect just yet). CL 3 resolves first --> discard phoenix blade, draw 1 (now you can normal summon), CL2 resolves next --> add another Gouki that you have not used this turn (probably riscorpio or bearhug), CL1 resolves --> Special Summon the gouki you just added to the leftmost main monster zone (Left of Firewall Dragon).
9. Up until this point we have not activated Firewall Dragon's bounce effect; now that you have Knightmare Mermaid up top, and Knightmare Goblin to the right of Firewall Dragon - you are going to activate the bounce effect, adding 2 cards to your hand. You will add octostretch and iblee from your GY to your hand.
Board Placement:
Leftmost extra monster zone - Knightmare mermaid, underneath Mermaid is Firewall Dragon, to the left of firewall dragon is the gouki you last summoned, and to the right of Firewall Dragon is Knightmare Goblin.
10. With that extra normal summon, you're going to Normal Summon iblee to the only zone Goblin has open (it's rightmost zone, which is directly under the rightmost extra monster zone) --> this triggers Iblee's effect --> allowing you to summon Knightmare Cerberus to the rightmost main monster zone (next to Iblee).
11. Using the Gouki you had summoned off firewall + iblee --> you're going to go into your 2nd Knightmare Cerberus (next to knightmare goblin); using that gouki's effect to add another Gouki card (add one more gouki monster that hasn't been used or isn't the gouki you added off isolde/octostretch), and using Iblee's effect to special summon herself to your opponent's field. Firewall's effect will trigger allowing you to summon 1 card from your hand.
12. Use Firewall's effect to summon octostretch from hand (the one you bounced from the grave) to make linkuriboh above Knightmare Cerberus. At this point you have achieved the extra link, however each card can be desroyed by battle; so you use firewall's effect for the last time to summon the last gouki you added (from your hand) to the field. Using this gouki + firewall --> you go into Knightmare Phoenix, right under mermaid and to the left of goblin (placing it where firewall just was).
End Board:
KM Mermaid Linkuriboh
Open KM Phoenix KM Goblin KM Ceberus Open
------------------------ back row ------------------------