Forum:Lava Golem's effect

The Effect of Lava Golem
The Card's effect says "You cannot Normal Summon or Set the turn you Special Summon this card." What if I normal summoned a monster before special summoning it to opponent's field? Can I do that?? Can I also synchro summon or fusion or special summon monsters after special summoned Lava Golem to opponent's field?

Another question, Does the opponent HAVE to tribute two monsters to special summon this? I mean, do they have a choice to refuse to summon that? 49.176.38.96 (talk) 07:58, December 26, 2012 (UTC)