Gaia the Fierce Knight Origin — Ruling

Effetto 0

This card's effect that Special Summons is an Ignition Effect that activates in your hand. (It does not target. Sending 1 Level 5 or higher monster from your hand to the Graveyard is a cost to activate this effect.)
This card's effect that a makes it able to be treated as 2 Tributes is not classified as either an Ignition, Trigger, Quick, or Continuous Effect.
This card's effect that changes the ATK is a Quick-Effect that activates in the Graveyard. (It targets 1 monster on the field whose current ATK is different from its original ATK and can be activated optionally during either player's Battle Phase. During the Damage Step, it can be activated at the start of the Damage Step and before damage calculation. Banishing this card from your Graveyard is a cost to activate this effect.)

This card's ① st effect is an Ignition Effect, which can be activated in the Hand.

This card's ② nd effect is an effect, which is not classified as an Ignition Effect, a Trigger Effect, a Quick Effect, or a Continuous Effect.