Endymion, the Mighty Master of Magic — Ruling

Effetto 1

This card's monster effect that negates the activation of a Spell/Trap Card or Spell/Trap effect is a Quick Effect. (It does not target. It must be activated by chaining directly to a Spell/Trap Card activation or a Spell/Trap effect's activation, and can be activated during the Damage Step.)
Returning the card on your field with Spell Counters on it to the hand and negating the activation of a Spell/Trap Card or Spell/Trap effect does not happen simultaneously with placing Spell Counters on this card.
You must apply the part of the effect that returns a card on your field with Spell Counters on it to the hand and negates the activation of a Spell/Trap Card or Spell/Trap effect, but you can choose not to apply the part of the effect that places Spell Counters on this card.

This card's monster effect that prevents it from being destroyed or targeted by your opponent's card effects while it has Spell Counters on it is a Continuous Effect.

This card's effect that adds a Normal Spell Card from your Deck to your hand is a Trigger Effect. (It does not target. You can activate this effect optionally at the end of the Damage Step when this card is destroyed by battle.)