Thanks Blaze! I've only just started doing videos so I'm sorry about the terrible quality, though I'm glad you love Gengar too! He's one of my favorites as well
As for the EVs you're pretty right, although not all Pokes only give you +1 to an EV there are some that give you +2 instead, once I get home I'll send you the best places to EV train as well. About the IVs you're partially right, IVs are hidden values that automatically add up once you level up. Its very important competitively but doesn't matter much when you aren't playing in-game. You can also pass down IVs from Pokemon to its offspring, so if you have a Tyranitar with 31 IVs in attack and you breed it then the resulting baby Pokemon has a chance of having that same amount. Also 252/252/4 isn't the only EV spread but it's definitely the most common and very good for a beginner to know. I'll be on the xt soon and I'll stay on most of the day today so I can explain further if you get on there. Also I noticed you posted on your own profile instead of mine, to post on my page so that I see the message quicker just click on my name then go over to "Visitor Messages" and post there, that way I'll get a notification when you post the message.