9, 1999 Switch is a very balanced card by today's standards, but the ability to switch a Pokmon without worrying about retreat costs or status effects is immensely useful
While that spell allowed for explosive, high-value artifact turns, Nanogene conversion instead foregrounds creature combos and powerful, game-ending swings
#134: Spellfire: Master the Magic Spellfire: Master the Magic is a poor case for respect your elders
Special Summon 1 "Memento" monster with a lower Level than the target from your hand or GY
Therefore, it is quick and practical to put them on the field and use them for their Primal Turbo ability, where they can attach up to 2 special energies from your deck to one of your Pokmon, charging Lugia with the Powerful Colorless Energy DAA 176, where the Colorless Pokmon it is equipped to deals 20 more damage