Qliphort is a control deck which recently got a boost from skill drain being at three as all the deck's pendulum efffect monsters can be normal summoned without tributing, but lose attack and their level is lowered, but thanks to skill drain their stats get back to normal. If you don't see skill drain, the effects on the tribute summon of stealth, helix and carrier will help you deal with your opponent's board. Scout can search the other qliphort monsters thanks to its effect and monolith recovers your resources by drawing cards when you tribute summon up the number of monsters you tribute. Lose 1 Turn is there because it synergizes a lot with the archetype as the effects of the main deck qliphort monsters are on tribute summon and the cards only affect special summoned monsters. Cards like dark ruler no more, monarch stormforth and harpie's feather duster are there to make life easier going second as this deck really wants to go first. Feel free to change the ratio of the monsters and to try different floodgates.
About this deck keep in mind that it was released in the ARC-V era when pendulum decks used to be able to special summon many monters from the extra-deck instead of one. Qliphort genius is a good way to play around that as it opens up two extra monster zone and searches a qliphort when yu pendulum summon two qliphort monsters from the extra. However, keep in mind it will not be unaffected by skill drain if skill drain was alrady on the field before you link summoned it.
Towers is not played because while it's not completely terrible it suffers from the fact that link monsters exists. Although not all decks play those many still do. Also it's very unlikerly you'll be able to summon it turn one considering hand-traps exist.