Konami has been holding out on some of the cards for the upcoming archetypes debuting in Phantom Revengers, one for Hecatoncheire and one for Enneacraft.
Hecahands

Normal Spell Card
You can only use the (1)st and (2)nd effects of this card's name each once per turn. When you activate this card, you can also send 1 other card you control to the GY.
(1) Add 1 “Hecahands” monster from your Deck to your hand, then, if you sent a card to the GY at activation, you can Set 1 “Hecahands” Spell/Trap from your Deck, except “Hecahands”.
(2) You can banish this card from your GY; your opponent draws 1 card, then they discard 1 card.
The Hecahands archetype (originally named Hecatoncheire) has been given a pretty versatile tool to help round out its arsenal.
The traditional in-archetype RotA (Reinforcement of the Army), this Normal Spell card can function as a good combo extender when used in conjunction with the smaller members of the Hecahands archetype, Ibel and Yabel. Both of these main deck monsters can piggyback a recursion effect when being sent to the graveyard.
Even if you don’t have a copy of Ibel or Yabel in hand, Hecahands can make use of any unneeded handtraps depending on how the state of the board is developing.
Unfortunately, Hecahands will definitely become a magnet for interruption just because of its search effect. The likelihood of a negation increases if the controlling player commits to sending a card to the graveyard if the opponent believes it can put the Hecahands player into a resource deficit.
Notably, if the controlling player can clear the way for Hecahands to activate undisturbed, then not only do you get the benefit of a generic monster search, but the admittedly powerful archetype trap cards, Ibt al Hecahands and Yad al Hecahands, can be used with greater consistency.
As for the second effect, a player may not like the idea of allowing the opponent to cycle a card in hand. But this effect can be an alternative way of getting the bigger main deck archetype members (Ghoddos, Gyges, and Breus) to special summon themselves from the hand, since drawing a card still counts as adding a card to the hand.
To help entice players to use Hecahands, this card has no clause stopping its second effect from activating on the same turn it was sent to the graveyard.
Enneacraft – Rebirth

Normal Spell Card
You can only activate 1 card with this card's name per turn.
(1) Shuffle any number of “Enneacraft” Monster Cards from your hand and/or face-up field into the Deck, then draw cards equal to the number shuffled.
(2) If your opponent Normal or Special Summons a monster(s) while this card is in your GY: You can banish this card, then activate 1 of these effects;
● Special Summon 1 “Enneacraft” monster from your hand in face-down Defense Position.
● Change 1 of your Set “Enneacraft” monsters to face-up Defense Position.
Enneacraft - Rebirth plugs up one of the biggest sore spots the Enneacraft archetype has. And that’s not being able to flip Enneacraft – AtoriϜ.MAR on the opponent’s turn. Just that alone already raises the competitive viability of this weird Flip/Pendulum archetype, just because the most devastating effect in its arsenal can now be used as a preemptive interaction point and not a reactive one, where a player would hope their opponent just walks into the trap unknowingly.
Being an Ennecraft card by name also means Rebirth is actually searchable by any of the smaller main deck monsters (α' “orgIA”, β’ “alazoneIA”, Ϝ’ “tromarIA”, and θ’ “oknirIA”).
To add to its contributions, Rebirth is the archetype’s version of Magical Mallet. Even better, a player can use any of the Enneacraft monster cards that have already been flipped face-up to fuel this card cycling.
Enneacraft - Rebirth might not necessarily give a player instantaneous card advantage, but being able to shuffle back already used resources for a fresh set of 4-5 cards can be almost as good.
Back in its heyday, Magical Mallet managed to carve out its own niche just because it helped unclog bricked hands, and if you happen to have both pendulum zones used by the Enneacraft search effects, then that’s still more fodder for the cycle.