Control deck

A control deck, also known as a late game deck, is a deck that attempts to attain victory in the late game, through a combination of early game removal, Taunts, and powerful cards in the later rounds of the game. These decks focus on controlling the early game in order to survive through to the later rounds, where they can use a string of powerful spells, or a steady flow of larger minions to overwhelm the opponent.

The control deck is the opposite archetype to the aggro deck.

Rock, paper, scissors
A common concept held across collectible card games is that the three traditional deck archetypes - aggro, midrange, and control - are similar to the classic game of rock-paper-scissors. This is because in theory aggro decks beat midrange decks, midrange decks beat control decks, and control decks beat aggro decks.

Tempo decks can be won when they run out of steam, but are dangerous when they're more mid or late game oriented.