Well, I am at it again trying to find a new Type 2 deck out there or if I can find one on the internet that isn't Psychatog. Some decks I just get bored with because either the deck wins to much [you're probably thinking how can you hate winning too much; you get bored with the deck and you want some competition every once in a while], or it really sucks and you're sick of losing.
The first consideration I usually take is can I get the cards I want for the deck. If you can't get the really expensive cards or you can't find them anywhere, my advice don't try building the deck because I did it before and it just sucks because you don't have a deck for a long, long time.
The second consideration I usually take is can I play the deck that I really want to play. There are no combo decks out there in Type 2 which are at least good, so you really don't have to worry about that. Some decks you have to least have some skill to play like Psychatog, Opposition, and Upheaval. In Extended if you really want to build a good deck you have to have skill. There are combo decks like Cocoa Pebbles, Trix, Counter Sliver, Turboland, Stasis, Reanimator, and Aluren. Then you got Type 1, I'm not even going to get started on that format. I don't play it and it's to fast for me.
The third consideration is can this deck win or am I just playing this for fun. If I'm playing to win, first I check to see if there more decks on the net like this, (usually in my opinion indicates that is a good sign), does the deck have any draw backs, and what does it lose to. All those things come into my mind when I want to win. If I am just playing for fun, I just throw in any cards that I think is fun.
No, I am not Jon Finkel or Kai Budde, I am not a Pro Tour Player [maybe some day] but that is some advice I have for some people. Down at the store where I go to these kids always want me to build them decks and it's really annoying.
Just always remember, you're good but you're no Bill Patterson.