Opening neo space connector can get you two different combos
One is a draw 4 combo (with one interruption) and the other is a setting up floating interruption combo, they both start the same way.
Normal neo space connector
connector effect summon dolphin
Link those two for isolde
isolde searches immortal Phoenix
Mill durendal for renaud
renaud recycles durendal
activate durendal and then destroy it for renaud no 2
Renaud no 2 summons itself as a tuner
link both renauds for halq
use halq to summon Valkyrie
link Valkyrie for gullvieg
banish Gearfried, gullvieg, and Isolde as cost
here where it differs
for mass interruption floating boss combo you summon Valkyrie, gullinversi, and deverg, gullinversi can recycle if you want.
pass without making an aesier
on their turn halq can instantly summon formula synchron and draw you a card, then you can accel synchro into quadriongandrax for 3 banishes and if it’s removed then you can float it into gearfiend
If you want draw 4 then do this
Summon diverg, ivaldi, and mimir
ivaldi searches hildskjaf
pass
on their turn you halq into formula synchron
formula synchron draw one