Template:Kalecgos strategy
When summoning Kalecgos, if you have no spells in your hand, it's generally best to Discover the highest-Mana spell possible, so you can get the most value out of a single turn. Alternatively, you can try and fish for a specific card, such as 
Frost Nova to delay your opponent or Arcane Intellect to dig through your deck.
You don't always have to play Kalecgos for the card he Discovers. If you were planning on playing an expensive card like Flamestrike (or even Frost Nova and passing), it's not a bad idea to summon Kalecgos first to generate a card and put a threat on the board.
Don't forget that if you attempt to use 
The Coin to summon Kalecgos when you have 9 Mana, Kalecgos' spell cost-reduction effect won't activate, as "the first spell you cast this turn" was already the Coin.
A good combo to use alongside Kalecgos is to destroy him using 
Conjurer's Calling. This will summon two 10 cost minions and will put a major threat on your side of the board, forcing your opponent to deal with them.
This template contains Strategy content for these cards.
Remember that this is just an archived content of Strategy section that was supposed to be removed following the decision in Hearthstone Wiki:Project 13. It's up to you to review the content and keep them for a project in the future. Details to follow soon, once Project 13 is completed.