Hazy Flame Hyppogrif

The monster effect "While this card is face-up on the field, your opponent cannot target this card with card effects" is a Continuous Effect.

The monster effect "Once per turn: You can Tribute 1 other FIRE monster you control; this card gains 300 ATK" is an Ignition Effect. (This effect does not target.)

When activating the monster effect "this card gains 300 ATK," you Tribute 1 FIRE monster in your Monster Zone other than "Hazy Flame Hippogriff" as the cost. (You can also Tribute a face-down Defense Position FIRE monster.)

The ATK gained by the monster effect "this card gains 300 ATK" remains applied as long as "Hazy Flame Hippogriff" remains face-up in the Monster Zone.