1. Try to play the Atlantean Prince or Sea Diva - cycle one Dragoon in to the grave and one to your hand
2. Then u take that cards which u need to beat enemy field, if u dont have them on the hand
3. With the second Dragoon cylce Mermail Abyssmegalo out, if u dont have him on the hand
4. Now u can start the combo. -> special Megalo and destroy enemy field, cycle the spell card and then activate the 2nd effect from Megalo to put the Prince into the grave. Now u can special 1 Dragoon to your field. In the most situations, 1 Megalo + 1 Dragoon are enough to OTK your enemy. Megalo goes with spell card to 3200 ATK and can attack 2 times. Dragoon have 1800 = 8200 DMG

Thats the main combo. The rest u can see in my Video :)

If u get a solid hand, u can beat the meta decks. But If this deck got not the right cards, its going to slow and u dont have so much options. Missing to much cards. It gives a good version with frogs, but u need the level 2 YXZ and this is not in the game. Link cards also not in the game. Dragoon is here limited on 2, but in real u can play 3. Finaly this is the small version of real life Mermail^^ Very important: try to start as second, your first turn is not realy strong here. Traps are not important, but i play these two for the first turn, because our deck have a very very bad first turn option. In the most sitatuions, u cycle for the next turn and when the oppenent have no OTK for u, u OTK him hehe

I didnt make a side deck, becaue this deck have only one strategy: Destroy your oppenent in 2nd or 4th turn. U have options to destroy what u want on the field. If u have problems with some monsters, because of their destroy effect, u have forbidden lance in the sidedeck. U can also going for level 4 or 7 xyz.

This deck wins easy and fast vs KI!