Best Clash Royale decks for 7 elixir challenge

As the season of Clash Royale's A Tale of Thieves begins to fade, players are now just over one of the wildest events in the game, the 7x Elixir Challenge, which runs from April 28 to May 5. With elixir just gushing like a fire hydrant, seven times faster than the normal rate, strategy comes second to wits, ruthless offense, and no-holds-barred unit spawns. Welcome to the madness.
In such a crazy fast environment, every card is available to, even the heaviest-hitting. The key is not only to choose strong cards, but also to choose those that pair well with each other under pressure. Bearing this in mind, three battle-tested decks are provided that were designed not to survive the chaos, but to thrive in it.
Core Cards:

This deck is focused strongly on lane control. You basically want to attack from two fronts: Royal Recruits splitting and distracting one lane while P.E.K.K.A deals with the other lane. Given this is a 6.3 elixir average, one would think it would be a recipe for disaster, but here, it is just unstoppable. Boss Bandit and Night Witch provide backup muscle, while the Executioner can easily shred air and swarm units alike. Cycle through your keeps, and feel free to drop the Three Musketeers early; most troops won't be able to respond in time for the Three Musketeers to tank damage and take down the tower.
Tip: Go aggressive right off the bat. Set the tempo with a Mega Knight or P.E.K.K.A, forcing your opponent to defend.
Core Cards:
This deck was crafted for the pure, blatantly destructive endgame. Royal Recruits comes out first with your opening play, setting a defensive tarp.
Tip: Stack your push. This isn't just tossing troops; you get weight behind each elixir burst to overwhelm your opponent with sheer numbers.
Core Cards:
This deck introduces a refreshing twist in splitting the pressure between ground and air. While Lava Hound lazily flows to the tower, P.E.K.K.A and Mighty Miner attack on the opposite lane. Sparky charges up to decimate ground troops and Executioner plus Electro Wizard hold the line. Goblin Barrel creates quick pressure plays forcing the opponent to split his attention.

Tip: Think asymmetry. Use Lava Hound as the decoy; your real damage push goes the other way.
In the 7x Elixir Challenge, no time for second thoughts. Whether beatdown, control, or split-push are your thing, these decks will help you make it through the storm. Choose your playstyle, embrace chaos, and remember-every match is a sprint, not a marathon.