Goblin Giant is a tank carrying two Spear Goblins on its back that can hit air. Sparky is slow, but once charged it deals massive splash damage in a single shot. Goblin Giant takes the damage up front while Sparky behind it wipes out the defense.
Game plan
Start Goblin Giant at the back and put Sparky behind it. While Goblin Giant takes the tower's fire, Sparky blasts your opponent's defenders and the tower.
Watch out for cards that reset Sparky (Zap, Electro Wizard, Electro Spirit). The safest time to attack is when those cards aren't in your opponent's hand.
Defend with Dark Prince, Mega Minion, Electro Wizard and Goblin Gang. Sparky is also great on defense and can stop big tanks on her own.
Cards and their roles
Goblin Giant6 elixir Win condition and tank. The Spear Goblins on its back hit air.
Zap2 elixir Small spell. Clears swarms and resets Infernos.
Mega Minion3 elixir Sturdy air troop. Provides air defense.
Dark Prince4 elixir Shielded prince with splash damage. Clears swarms.
Electro Wizard4 elixir Air-targeting support. Resets Infernos and stuns troops.
Fireball4 elixir Medium spell. Hits support troops and the tower.
Sparky6 elixir Slow-charging support with massive splash damage. Strong on both offense and defense.
Tips
Put Sparky right behind Goblin Giant; if she ends up in front, she becomes an easy target.
Attack while your opponent's Zap or Electro Wizard is cycling.
If Sparky survives a defense, add Goblin Giant in front of her for a counterpush.
Clear your opponent's swarms with Zap and Fireball to open the way for Sparky.
Strong against
Against tank-heavy decks: Sparky melts tanks.
Against decks with few reset cards.
Struggles against
Against reset cards like Zap, Electro Wizard and Electro Spirit.
Against fast cycle decks: you take pressure in the other lane while building an expensive push.
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