If you have 40 cards in your deck you should have about 20 monsters, 10 spells, and 10 traps unless you want to unbalance it on purpose.
Depends how many syncros you got and, every deck is used in different ways so you should choose
how to make a bad deck: use many high level monsters that can't be special summoned. don't use an extra deck. use many normal monsters. use a 60 card deck. don't use cards that cost more than $0.50 dont ever use cards that destroy other monsters/spells/traps
I personaly shuffle my deck about 10 or 20 times. I then look through it to see if it is well shuffled and then shuffle it again.
You really could have as many kinds of Pokemon as you want in a deck (so long as you have 4 or less of each individual card), but beginner decks should really only have 1 or 2 types (3 is pushing it). If you're deck is more advanced and is properly structured, 3 or 4 types would be the limit. Beyond this is difficult to manage and usually doesn't work out well.
There are many types of fly traps out in the market these days. Traps are preferred over chemicals in this environment. The more traps the lesser flies seen.
A Magic: The Gathering Commander deck should have 100 lands.
A Magic deck should typically include around 24 to 26 mana cards for optimal gameplay.
A Magic deck typically consists of 60 cards.
A Magic: The Gathering Commander deck should ideally have 37 lands for optimal gameplay.
It has a poker deck, a bridge deck and a canasta deck!!
A Magic deck typically includes 12 to 30 creatures.
A Magic: The Gathering deck typically consists of 60 cards.
A standard Magic deck typically includes 60 cards.
For optimal gameplay, a 100-card deck in Magic: The Gathering should typically include around 36 lands.
In a Magic: The Gathering deck, you can include up to four copies of a card, unless the card specifies otherwise.
In a deck of Magic: The Gathering (MTG), typically there are 4 copies of a card included.
A minimum of 60 cards are required in a Magic deck for it to be legal in official tournaments.