6 Channels in one turn

The goal with this deck is to perform a combo to play up to 6 Channel the Tempests in one turn. To do this, we need to have Iceberg Scattershot and West-Wind Herald in hand, and Channel the Tempest and End of Hostilities in our void. Herald's Song really helps with getting channel into your void without playing it, and you can use End of Hostilities on your merchant with the tribute activated to get most of the cards required for the combo.
To perform the combo, we trigger tribute first by attacking and having the enemy block, using Iceberg Hailshrieker, or using Herald's Song. After this, we play Iceberg Scattershot, and then West-Wind Herald. Play end of hostilities from your void onto your herald, and then play channel from your void, and then play end of hostilities onto your herald, and then repeat.

Keep in mind this combo is greatly limited by your board space so you should start trying to remove many of your minions in the turns before you pull off the combo. One copy of Hailstorm is included in the market in case your board is way too big, although it is quite difficult to actually play hailstorm from the market, unfortunately.
Finally, this combo is very tough to pull off, since it is reliant on luck as well as the abilities of the player to adapt to each situation. The deck isn't ideal, but it has worked for me more than once. Good luck!

Example boardstate before combo:

Boardstate after combo: