Miner is a win condition that burrows and pops up anywhere on the map. It reaches the tower directly and deals steady damage, making it a favorite of control decks.
Send Miner straight to the enemy tower, or use it to take out defensive buildings and back-line cards like Princess or Musketeer. Its tower damage is reduced, but it adds up every cycle. Pairing it with Poison or Wall Breakers is a classic plan.
Tips
Send Miner with Poison on the tower to also take out the defenders.
Vary which corner of the tower you place it on to make defending harder.
Using Miner to take out an Elixir Collector or Princess is also valuable.
Strengths
Can appear anywhere, so it's flexible and hard to predict.