https://i.imgur.com/n9a1W.png

o.O why have u got silver sentinel in there?
and dimension fissure? o.O with miracle fusion????
3 dimensional prison? o.O and perhaps 2 evocator chevaliers and a elemental hero nova master in extra? cuz chevalier is a gemini for gemini spark also a warrior for RotA and blade armor/excalibur and its also lv 4 for xyz and its fire for nova master who gives u a draw if u destroy a monster by battle

I think 2 senital is too much, although it is searchable by rota, u don't want ur opp to know lol
3 prison is meh, maybe 2 bottomless and 2 prison to stop monsters that do damage the moment they the field like scrap, chaos, inzector, windups, Dad etc etc

im guessing you have sentinel because it can be set in the spell/trap zone so if its in your hand with another monster and bubble man and the rest spell/traps u can set it instead of waiting a turn to summon it? am i right?

Yeah, sentinel works perfectly at 2, and you would be surprised. I won't add the other gemini dude. My monster count is good how it is. I don't want more monsters in it. It'll make the deck less of what it is. And 3 gemini targets works very well.