Tearalaments is a new archetype in Yu-Gi-Oh based around fusion monsters, however they do not have an in-archetype fusion spell. Instead, the Main Deck monsters can activate an effect that can fuse monsters together by shuffling them from the hand, field or GY back into the deck, making them very recursive. Shove the best deck right now into the archetype and you have a pretty solid meta list centered around fusion summoning.
For the decklist, we have a Tearalaments package of 2x Shaylen, 2x Reinoheart, 2x Haufenis, 2x Meirrow, 3x Ruined Realm(and 1x Terraforming for it), 2x Crime, 3x Kaleido-Heart, and 2x Kitkalos, we have a Branded package of 1x Dramaturge, 1x Ad Libitum, 3x Aluber, 2x Albaz, 2x Tragedy, 2x Lost, 3x Fusion, 2x Red, 2x Opening, 1x Chimera, 1x Mirrorjade, 3x Lubellion, 1x Quaeritis, 2x Albion, and 1x Masquerade, for the rest of the Main Deck, we have my preferred lineup of Handtraps, 3x Ash Blossom, 2x Ghost Belle, and 2x Veiler, and 1x Called By, for the rest of the Extra Deck, we have 1x Underworld Goddess.