Other than the plant deck this deck does not have access to one cards Synchro Monster through Debris Dragon or the free summon of tuners from the grave in form of Spore or Glow-up Bulb, every synchro summon in Karakuri is a direct two card investment and result in minus one and probably a losing game state if their summons get negated
Pikachus power dips slightly in the late game, but its early game dominance more than makes up for it
This is mostly just a 5-mana 4/4 flyer in Limited, though you'll occasionally be able to use Ultima's blight counters to nerf opposing lands or ramp your mana
You can also run the thematically appropriate Leonin Relic-Warder and Animate Dead combo alongside this nightmare, slotting in death payoffs that give you mana (Pitiless Plunderer) or life drain (Zulaport Cutthroat)
During the End Phase, if this card is in the GY because it was sent there from the hand this turn: You can place this card face-up in your Spell & Trap Zone
The enters-the-battlefield ability, on the other hand, is completely inspiring since it allows you to ramp by putting the best land out of the top five cards of your library onto the battlefield