This is a very versatile MK Miner Spam deck. You can defend and counter-push, use your cheap cards to apply pressure in the opposite lane, and can build up big pushes in the back.
There are many win conditions in this deck but the miner is the main one. Make sure your miner is always applying pressure in the opposite lane tanking for bats or wall breakers. Or use it while you are going in for a big push to get sneaky damage while the mega knight is tanking.
The Mega Knight is so good at pressuring in this deck. Use him on defense and counter-push with a witch, prince, or bandit behind to create massive pressure.
The Zap is the only spell in this deck and it is important to use it properly. You can obviously use it to break through swarms or charge units like the inferno tower, but you can also use it to retarget troops or towers to the miner to keep units like the mega knight and the prince alive enough to make it to the tower.
In the early stages, you can pressure lightly with miner bats and miner wall breakers combos. Make sure to have a good defense that allows for massive counter-pushes.
In the later stages of the match, you can start to build up big pushes with a Mega Knight or a Witch in the back. A Mega Knight, Prince, and Witch push is something that can be undefendable for your opponent.