You can only use the (2)nd effect of this card’s name once per turn.
(1) If you control “Shining Sarcophagus”, you can Normal Summon this card without Tributing.
(2) If this card is Normal or Special Summoned: You can target 1 monster your opponent controls; take control of it (until the End Phase), but if you did not control “Shining Sarcophagus” at activation, that monster cannot attack while you control it.
(3) Other monsters you control gain 500 ATK during your turn only.