>>55086632>change a Pokémon's typeThis could be an application of transmutation, ie Philosphers Stone transmuting lead into gold. One Pokémon element into another, via a neutral crystal agent.
>create super advanced technology and life itselfThe energy utilized by the Professor allowed them to make make advanced technology; nor is life seen being created, surmised to simply be summoned directly via time travel application of the energy.
>grow plants that allow a Pokémon to grow in size and cure any ailmentIf either based on Ryūjin, the Dragon King, or Philosophers Stone, either way they can create life extending medicine; the size thing just being byproduct of perfect health means growth for Pokémon, apparently.
>create a completely artificial underwater environment Which it did not do, Clavel and Unova made this place, without Terapagos until recent months they implemented the Tera Energy via the orb adding Kitakami water and Paldean soil to it.
>timetravelWhich makes more sense if based off of Ryūjin, the King of a realm that extends outside of the normal flow of space time, Terapagos acting as the Turtle that transports things between the mortal realm and this other realm, could be interpreted as a form of time traveling.
But what it is not, is wish fulfillment or I,agitation.