FTK combo:
save the normal summon for dogra
summon batosbuster
summon halqifibrax -> summon synchro magnet
summon cupid pitch -> decrease to level 1
summon benten / idaten
summon tool dragon -> (search dogra via cupid pitch and charging cell via tool dragon)
summon reprodocus
summon dogra below reprodocus
make dogra psychic with reprodocus and equip charging cell
now dogra can be used infinitely
arc light, omega and reprodocus in extra deck means infinite field / GY recycling and infinite ritual monster / spell searches
batosbuster is a 2k machine and can be used as tribute to summon idaten / benten / och / ophiel
benten + idaten = m7 which can be used as tribute to summon batosbuster
that means any ritual mosnter can be summoned infinitely
summon scarlight with batosbuster and och / ophiel
summon other 4 monsters
use scarlight to burn for 2k
rinse and repeat
I never played drytron before so I'm sure the deck list can be improved.