From a personal perspective, Destruction and Chaos are the two factions that I find the hardest to play with, that demand more knowledge of you deck, knowledge of the typical traits of your opponent deck and just a higher skill level to play
For the rest of this turn after this card resolves, you cannot draw cards by card effects
Fan art in the US is protected under, among other things, 17 U.S
Psychic Assault does 30 damage plus ten more for each damage counter on your opponents Active Pokemon
Card Size is Different Paper Quality difference and Paper Thickness, but this depends on the set too I think, because they may change the paper stock that they use depending on cost of materials you can also ask a Pokemon Professor, they may have insight into fake cards entering the market and be able to give you pointers in spotting fakes
The Wurm is susceptible to exile-based removal though, so watch out for that.