Effect
Cannot be Normal Summoned/Set. Must be Special Summoned with "Legend of Heart". When this card is Special Summoned: You can target 1 face-up Spell/Trap on the field; banish that target. When this card is targeted for an attack: You can target 1 Spell in your GY; Set that target.
"Legendary Knight Timaeus" is a Special Summon Monster.
Even if it has been Special Summoned by the proper procedure, it cannot be Special Summoned from the Graveyard or elsewhere afterwards by any effect other than the effect of "Legend of Heart".
The effect "(1): When this card is Special Summoned: You can target 1 face-up Spell/Trap on the field; banish that face-up Spell/Trap" is a Trigger Effect that can be activated optionally when this card is successfully Special Summoned. (This effect targets.)
The effect "②: When this card is targeted for an attack: You can target 1 Spell Card in your Graveyard; Set that card to your field" is a Trigger Effect that can be activated optionally when this card is targeted for an attack. (This effect targets.)
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