A way to make use of your pile of Magic: the Gathering cards

mtg_formats.txt

«Double Rainbow»
You grab 60 times the number of players random cards from your pile and shuffle those. 
The rules of the game are modified in that way — 
* Players can't search the library, 
* If you would draw a card, scry 3 and draw a card instead, 
* Any time you could play a land you may remove a card in your hand from the game. 
  If you do, place a basic land — Plains, Island, Mountain, Forest or Swamp token into play under your control. 
* Players share the library. 
* If you must draw a card and you can't suffle all the card removed from the game 
  in order to put land token into the library.


«Unsealed Draft»
Unsealed Draft is the modification of limited. 
A ton of fun to play w/ friends who know each other's play style guaranteed.
You get five booster packs for each of the player (either buy new, or just grab random cards from your card chest). 
Then each of the players chooses 45 cards from those and makes three «unsealed booster packs». 
When the sitting is generated and the players take their seats, each player hands 
* booster A to the person on his right, 
* booster B to the person on his left,
* booster C tothe person he's facing sitting at the table. 
Then the received piles are shuffled and random 15 card boosters are generated from the received pools.
Afterwards, the standart draft starts.