Because of the way on field debuff this card does, it also works on both Yaksha and Barong as they are reduced to 1500 atk/0 defense with just this card as your only Naturia on the field.
You miss the timing. Since either of those cards gaining a counter resolves after Utopia stopping his attack (that is, Utopia´s stop is not the last thing to happen), you can no longer chain Double or Nothing.
I believe it's only affect continuous card, as those card need to be faceup on the field to resolve the effect.
As for others, as long as you are not negating it, it still resolving.
Rookie logic... Meawhile you will have 3 dead cards in your deck that all they offer is some mediocre boost (best scenario +500/600?) if and when your gy is full.
Why is this a B+?
Pro:
Good ATK/DEF stat
Effect can help you to OTK
Cons:
Can only be special summoned by its own effect
You go -3 to summon it
You have to use a mediocre archetype
The effect is very situational and will be useless in most cases
You can't conduct battle phase for its last effect
I bet you just @@@ your unrelated, not so important comment that didn't contribute anything on the site or duel link got delated by the mod. It is a good thing to take out trash once in a while.
How can you can stop an otk when this card can only be activated in your main phase and until the end of your turn? Also, as already said, none, even rookies, wont let magician circle.
You can also put a golden jet in your deck.
When golden jet and one other monster is on the field, you can sent a rank 8 monster like Dragluon to the GY, use Golden Jet's effect and summon Dyson Sphere.
You need at least one AMA for Assault Beast. Then you only need Psi Reflector in your hand to instantly summon a synchro monster:
-Summon Psi Reflector and search Assault Beast
-Discard Assault Beast to search AMA
-Use the other effect of Psi Reflector to SS Assault Beast from the GY
You could ignore the 2nd AMA tho. It's probably just there such that you can discard Assault Beast more likely