Ok, I'll show you the deck and comment.
3x Machina Fortress - lol, this card is so hot and strong, you can summon it from hand by discarding himself + any machina card in your hand, and you can also do this from graveyard, you can discard your malefic cyber dragon and summon it + it can destroy by battle you can destroy 1 card on your opponents field + when its selected as an Attack target you can look at your opponents hand and discard 1 card.
Rate: 5/5 Broken, OTK

3x Machina Gearframe - With this you can search Machina Fortress, it's good + you can equip it to machina fortress for example: Your opponent use Dark Hole, Smashing ground, fissure, ecc.... If it's equipped to fortress, fortress WILL stay on the field and it will get destroyed so It's good, safe and has high atk 1800.
Rate: 5/5 Broken

2x Machina peacekeeper - level 2, small union monster, well it's not amazing as gearframe, but you can just set it for fun and when it's destroyed you can add Gearframe, also you can equip it to machina Fortress.
Rate: 3/5

6x Gadgets - lol, keep searching and you'll always have something to discard for fortress + remember to summon fortress you can discard himself + 1 monster, you dont have to discard 2 gadgets, you just discard himself + 1 gadget, if its in your hand
Rate: 4/5

2x Swift scarecrow - well, battle fader , it's machine and it's fun
Rate: 3/5

3x Malefic Cyber end Dragon - It's not out yet but its so easy to summon, in this deck we will be using skill drain, so when skill drain is on the field, you can remove 1 cyber end dragon from your fushion deck and summon it, Man 4000 ATK it's soo high and you can bump up 3 in 1 turn hehe
Imagine 3 malefic cyber end 1 skill drain 1 gadget and 1 machina fortress
set skill drain than next turn summon 3 cyber 1 fotress and if you have limit removal 8000 8000 8000 5000 is 29 000 damage
Rate: 5/5

1x Limit removal - No comment OTK lol
Rate: 5/5

2x Solidarity - Work super awsome, it helps your gadgets so much staring from 2000 atk arriving to 2200 (only gadgets) it's cool card )
Rate: 5/5

3x Pod of Duality - Well, helps dead draws
Rate 4/5

Standart 1x Book of moon, 1x Dark Hole, 1x monster reborn, 1x Giant Trunade - 2x MST - yeah, you know them so i wont explane them.
Rate: 5/5

3x Skill Drain - Wooh, another deck heart, it's good for your cyber end malefic, also for fortress, even if you dont get its eff, also it damages your opponent hehe
Rate: 5/5

2x Bottomless
4/5

2x Prison
4/5

1x Torrential tribute

1x Mirror Force

1x Solemn Judgment

Its a good idea definitly ,when malefic gets out woot

Wouldn't Skill drain mess up your adding features?

Skill drain is for malefic cyber end dragon, it will stay on the field and you wont need field card + it wont mess up so much Fortress and cyber dragon, well it hurts gadgets but when you have some beast like Malefic Cyber end 4000atk on the field you know
+ you have solidarity, if your opponent has Royal oppression you'll have high ATK gadget on the field, it can kill thunder king rai oh doomcaliber, almost everything,
also if your opponent has Royal Decree it wont hurt the deck, just malefic cyber dragon, but you'll get fortress effect and also gadgets.

NICE O.O!

Kewl! Adding otk potential to the consistancy of gadgets sounds like a plan to me. Kinda sad to see no warnings, but I can understand why with 3x skill drain and solemn. Maybe trap stun?