Fast Nitemare A-TECs

This strat will give you consistent sub-4:00 A-TECs on Nitemare if your deck is very good. Some 100% runs will not be good enough to try this initially, although you can modify it by doing 5 fusions and 5 equips instead of 1 fusion and 10 equips.

1 fusion
33 cards used (7 remaining)
1 face-down play
2 effective attacks
10 equips
1 pure magic
3 traps
9 turns
<7000 LP

Video demonstration: https://www.youtube.com/watch?v=8jmcasYaS5k

This A-TEC has one major difference from the most commonly used A-TECs: It ends the duel with 7 cards remaining rather than 3. This saves a turn if all goes well. A typical duel goes something like this:

Turn 0 (35 cards left): Set trap
Turn 1 (34): Set magic (take damage)
Turn 2 (33): Toss 4, play something big, 1st effective attack
Turn 3 (29): Toss 5, play something big, 2nd effective attack
Turn 4 (24): Set trap
Turn 5 (23): Set trap
Turn 6 (22): Toss 5, play something weak (or MBD in Defense), activate 2nd and 3rd traps
Turn 7 (17): Toss 5, play something big
Turn 8 (12): Toss 5, play something big
Turn 9 (7): Play anything, activate face-down magic, attack 1-2 times to win

If you don't draw your magic on turn 1, you will have to find another way to take damage. For this reason, it is recommended to have some monsters with <2000 Attack in your deck, such as thunders or Meteor Dragon.

The hardest part about this A-TEC is using 10 equips in only 33 cards. If you have only 10 equips in your deck, you likely won't draw them all in time. Also, some common equips, such as Sword of Dark Destruction, only work on a few monsters, so you may have to toss them to win the duel in 9 turns. To make this strat consistent, you need 13-14 equips, and at least 10 of them should be good equips like Dark Energy that work on most of your monsters.

The aforementioned 5 fusion, 5 equip route is also viable, especially if you have multiple Dragon Zombies. However, you'll need to take out some equips and/or big monsters to make room for the fusions, which will make Nitemare's biggest monsters a little tougher to take down.

-----

Optimal deck (added 12/4/22)
(assumes no Zoa or THTD; both help if you have them)

*18 MONSTERS*
3 Curse of Dragon
3 Meteor B. Dragon
3 Meteor Dragon
1 Red-eyes B. Dragon
3 Skull Knight
3 Gaia the Fierce Knight
1 Dragon Zombie
*3 REMOVAL MAGICS*
3 Crush Card/Raigeki
*14 EQUIPS*
3 Megamorph
3 Bright Castle
3 Dragon Treasure
3 Dark Energy
3 Beast Fangs/Kunai with Chain/SDD
5 TRAPS:
3 Widespread Ruin
2 Acid Trap Hole