Wrong, opponent bringing out Gandora is 1 step. The moment when he activates Gandora's effect of banishing cards, Enemy Controller can be chained in response to this action. Learn about chained effect before criticizing others, and yes you need to play more of course to understand Toggle On is required for this trigger.
You must be having a low intelligence count to know Enemy Controller activates first in the chain link before Gandora effect does, so after you took Gandora, how does your opponent activate his effect? Dumbass.
it's not too useful to econ take gandora. what will happen is gandora only shift to your side and still activates his effect. when it's effect resolves, since no other card on the field, you can only wait opponent to pass his/her turn, leaving the boosted gandora on his/her side.