4Clash Royale card guide
Mortar is a very long-range siege building. It can hit the enemy tower from your own side, making it the win condition of control and siege decks.
Place Mortar on your side near the bridge so it can shell the enemy tower. Protect it with a mini tank like Knight in front and cards like Archers or Spear Goblins nearby. On defense it also shells enemy troops from range.
Cards that deal with it efficiently:

This card has an evolution. The evolution is active in your deck’s 1st (Evolution) or 3rd (Wild) slot. The Evolution slot unlocks at Arena 3, the Wild slot at Arena 10.
ElixirDeck automatically takes your unlocked evolutions and heroes into account: build your decks.