The Main Deck "Ghostrick" cards are not very good, with the exception of Ghostrick Shot alone, as one can use any two Level 1, 2, or 3 of the same Level to make their respective Ghostrick Xyz (Ghostrick Dullahan for Level 1s, Ghostrick Socuteboss for Level 2s, and Ghostrick Alucard for Level 3s), and overlay that monster into Ghostrick Angel of Mischief, then detach the Ghostrick Xyz attached to it to add a Ghostrick Spell/Trap, in this case, Ghostrick Shot, which you can then use to reborn the detached monster, and overlay once again into Angel of Mischief, then use the two Angels to Xyz Summon Number F0: Utopic Future, which you can then use to Xyz Summon Number F0: Utopic Draco Future, a powerful boss monster that cannot be destroyed by battle or card effects, and has a once per turn monster negate.
The easiest Level to do this with is Level 3s, as you can use cards such as Junk Forward, as well as Psychic Wheeleder, Psychic Tracker, and Emergency Teleport, and have it all be supported by the Brave/Adventurer Engine, whose combo starter is Water Enchantress of the Temple, a Level 3 monster that can summon itself from hand, or banish itself from hand or grave to add Rite of Aramesir, which can get you easy access to a strong token and an omni-negate, in Wandering Gryphon Rider, or a powerful disruption, in Illegal Knight.
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