do you need a butane ligther for it to work?? also i have a gram of 20x, how much of it should i smoke for my first time?
No, you can have any sort of lighter. Just make sure it's a good lighter that can burn it all, like a BIC.
doesn't have to be butane, and I'd say try about a 40th of your amount, if you like whats going on, take some more (reverse tolerance). If not wait it out and do less next time.