So I went to a locals. My opponent had zexal and removed material and activated his effect. With a Kaiju in hand I kaiju zexal. He told me I couldnt but I was like why not. One of his buddies tried to side with him but 2 other people sided with me. He went ahead and let me kaiju, I then normal summon and passed turn since I was still under the card's effect. Was I wrong because I though Kaiju was not an activated effect.
If kaiju is allowed can someone help me with the practical way to explain
I never see anyone using utopia / utopia ray. I have been told that they are not that good and was wondering if I should try a different deck, or if there is some cards that could make zexal on par with some of the more common decks