You can only use 1 of the 1st and 2nd effect of this card’s name per turn, and only once that turn.
(1) Special Summon 1 “Artmegia” monster or “Medius the Innocent” from your Deck, also, this turn, the activation of your cards and effects that include an effect that Fusion Summons a Fusion Monster cannot be negated, also your opponent cannot activate cards or effects when a monster is Fusion Summoned this way.
(2) You can banish this card from your GY, then target 1 “Artmegia” monster you control; return it to the hand/Extra Deck, and if you do, destroy 1 card your opponent controls.