G-G-K: Godzilla - Gamera -King Kong

[PyrasTerran]

[Trenton Fella]

[PyrasTerran]

[Lord Ghidorah]

The consideration of spiritual energies is well advised, but I offer this note: regardless of why the monsters have their powers, said powers manifest as discrete physical (i.e. "real") events.

Oni-Goji was haunted, but even if (possibly) spiritually enhanced, his blasts manifested as huge beam cannon shots.

Gamera, regardless of his status as spiritual guardian, used fireballs. (I usually refrain from typing "plasma fireballs" because plasma is really difficult to use as a weapon, and Gamera's fireballs do NOT fit the bill for plasma effects.)
Regardless of the semantics, Gamera's fireballs are a physical manifestation of whatever powers the turtle. 'Same with the Mana Beam - it may be spiritually empowered, but its blast manifests in the physical world, and has vague-but-guessable parameters.

[PyrasTerran]