Effect
Your opponent cannot target this card with card effects. You can declare 1 card type (Monster, Spell, or Trap); send the top card of your Deck to the Graveyard, then if it was the declared card type, you can Special Summon 1 FIRE monster from your hand or Graveyard. You can only use this effect of "Hazy Flame Sphynx" once per turn.
The effect "While this card is face-up on the field, your opponent cannot target this card with card effects" is a Continuous Effect.
The effect "During your Main Phase: You can declare 1 card type (Monster, Spell, or Trap); send the top card of your Deck to the GY, and if it is the declared card type, you can Special Summon 1 FIRE monster from your hand or GY" is an Ignition Effect. (This effect does not target. You declare the card type when activating this effect.)
The process of "send the top card of your Deck to the GY" and the process of "if it is the declared card type, you can Special Summon 1 FIRE monster from your hand or GY" are not treated as occurring simultaneously.
You must perform the process of "send the top card of your Deck to the GY," but you can choose not to perform the process of "if it is the declared card type, you can Special Summon 1 FIRE monster from your hand or GY." (If you do not perform the Special Summon, the effect is treated as having finished after the process of sending the top card of your Deck to the GY.)
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