Metallion

I know I know, "why don't u play Secret Order it's so good" 

Tbh Secret order doesn't have any synergy with Metallion, the people that play it just jam it in because it's a good card but I believe it's bad in Metallion and here's why:-

1- The Level 7 Vanillas don't have a Fusion monster

2- in order to Secret Order to be good u need to find A:- the vanilla monster and B:- the treasure ship card that allows u to draw 2 by discarding the vanilla and then hopefully u draw into SO that's not an easy setup to achieve and will most likely cost u turn 1,2 and 3 any aggro deck is just not going to lose to u From that position even if u find SO and as u can tell that setup doesn't seem like it does what Metallions should do anyway 

3- it clogs your hand with bad cards (the vanillas without SO - the treasure ship with no vanillas - the treasure ship with SO no vanillas)

Now that out of the way let me sell u on the spellcaster engine :-

1- Sevens road magician can out basically all NON-FUSION bosses and the fact that the card has a fusion is just the icing on the cake 

2- Dark Leveration is still broken and can whipe out your opponent if he doesn't expect it (the fact that Magic Juggler and Amazing Dealer are spell casters and are Metallion staples anyway is perfect for the requirements)

3-the engine offers u great offensive and defensive options while giving u a secondary boss (SRM) in case u didn't draw Fusion 

Yuo is my Favourite character from Yu-Gi-Oh! SEVENS and his deck is both very good and super fun to play with I hope u enjoy playing it to ^_^

LET'S GO! RUSH DUEL!