Legacy Belcher deck
Belcher is a tournament deck designed to kill your opponent, preferrably, in turn 1 (or soon thereafter) using Goblin Charbelcher. The idea is fast-mana cards in order to acquire enough mana so so the player can cast Goblin Charbelcher.
Ideally , the Belcher player will also activate it on the same turn for the win with the burn effect.
Overview
Belcher is considered one of the fastest decks in the format. So much so that the community often uses the term "belcher" to describe a "glass cannon" strategy - a glass cannon is a deck that is often so dedicated to a specific combo that it lacks on defenses to survive interaction.
Although the deck may run 0-2 lands, it is considered one of the Landless strategies along with Manaless Dredge and Oops, All Spells.
The usage of lands in a Belcher deck (usually Taiga) became a meme in the community. It's almost tradition for a player to replace it with the most expensive version of Stomping Ground one can find as if to say "this could be a Taiga, I could afford it. But these 2 life just doesn't matter".
The alternate Belcher strategy is to win via Storm with Empty the Warrens to create a huge army of Goblin tokens.
Since Belcher is a Landless strategy, the deck Oops, All Spells may also run it as a backup win condition to dodge Graveyard-hate.
The strategy is also present in Modern
The deck Oops, All Spells improved greatly with the printing of the spell-lands (e.g.: Turntimber Symbiosis), but there hasn't been much experimentation undergone in the Belcher deck - and possible new decklists - besides those that originated Modern's decklist.
The deck can be made without the usage of Reserved List cards by replacing Lion's Eye Diamond and the (already optional) Taiga.