This is a Basic deck fomula for Yugioh Trading Cards!

20 Monster Cards:

(1) 10 - 7 star monster

(1)  6 star monster

(1) 5 star monster

(7) 4 star monster

(3) 3 star monsters

(3) 2 star monsters

(3) 1 star monsters

With lower star monsters try to use effect monsters to offset high star monsters.

12 spell cards

Teh spell cards should include some spell and trap counters like mystical space typhoonor magical jammer...etc.

8 trap cards

Traps are simlar to spells and should also include spell and trap counters.