Fetches are powerful because they can grab multiple colors of mana via shocks, untapped, at any time
Heres a quick outline: 1.0 PSA 2.0 - BGS 3.0 - CGC 4.0 - Notable counterfeits and other scams involving graded cards The focus will be on PTCG, however there is some relevant information from graded sports cards that will be included here
Most storm decks have a blue base to get the required draw and card quality however red has some new tools at its disposal making it the viable main colour
You can use the r/PokemonMisprints community to see if its an error or a fake, or go with CGC, one of the best Pokmon grading services for error cards
C Common Evilswarm Zahak X DARK Level 4 [ DragonEffect ] ATK 1850 DEF 850 If this face-up card you control is destroyed by your opponent's card (by battle or card effect) and sent to your Graveyard: Target 1 Special Summoned Level 5 or higher monster on the field
If that's not enough, getting up to 20 artifacts is a very doable way to win since you can generate your own artifact tokens and play artifact lands to boot