That’s very fair. The tutorial is very meh but the abilities are really important to succeed.
Essentially you have 2 abilities that you can select and use with right click. Fire Blast creates 5 burning tiles anywhere on the screen when you right click on a tile. However it requires 4 Power (The Flame icon on the left) and it must be used on a grass tile.
Stun Smoke: Right Click on a Fire Fighter with this ability and they will be stunned for 1 turn. This doesn’t require any power so it’s free to use and should be used as much as possible to prevent getting watered.