In the vast arsenal of magical spells available in the arena, almost all of them perform the exact same fundamental task: they deal direct damage to a specific area.

In the hands of a novice, it is a confusing, low-damage waste of 3 elixir that often accidentally pulls enemy troops closer to their own tower.
Waking the King
At the start of a match, your massive central King Tower is 'asleep'; its cannons are hidden, and it provides absolutely zero defensive support.

If the opponent sends a Hog Rider, Miner, or Goblin Barrel at your Princess tower, you can cast the Tornado perfectly to physically drag that enemy unit directly onto your sleeping King Tower.
Mastering the specific Tornado pull tile for every single unit is mandatory.You don't want to help the opponent finish it off.Let their lone Baby Dragon cross the bridge, then pull it to the King. Clumping and Splash Damage Synergy
This mechanic synergizes obscenely well with any troop that deals splash damage (Area of Effect).

You drop your Executioner, and the exact second he throws his massive axe, you cast Tornado in the center of their push.
The Splash UnitHow it WorksThe TargetExecutioner / BowlerDrags all units into a perfect straight line to maximize the linear splash damage of the projectileMassive Beatdown pushes (Golem + Support troops)Ice WizardGroups units together so the Ice Wizard's splash attack slows the movement and attack speed of the entire enemy armyBridge Spam or fast swarm attacks A Grandmaster's Tool
A bad Tornado will actively lose you the game by pulling a massive P. If you are you looking for more information regarding tower rush have a look at the web site. E.K.K.A directly onto your vulnerable tower.

Learn to manipulate the physical geometry of the arena to your advantage.