Choosing the correct combination of spells is arguably the most critical deck-building decision you will make, as they dictate your ability to finish games and secure positive trades.
Conversely, missing a heavy spell is the single fastest way to lose a match, instantly putting you at a massive elixir disadvantage.
The Heavy Hitters: Nuking the Arena
Every viable competitive deck must include at least one 'heavy' or 'medium' damage spell, typically costing between 4 and 6 elixir.
Poison provides identical total damage but spreads it out over several seconds, making it the absolute hard-counter to continuous Spawner buildings or Graveyard spells.
- Do not use 6 elixir to kill a single 4-elixir unit.
- Casting it defensively prevents the opponent from safely playing swarms in that area for several seconds.
- Practice the timing.
The Rotational Spells
Complementing your heavy nuke, your deck must feature at least one (often two) 'small' spells, costing 2 or 3 elixir.
Arrows, costing 3 elixir, sit in the middle; they lack special utility effects (like stun or knockback) but offer a massive radius and enough damage to kill tougher swarms like Minions and Archers.

| Magic Type | Best Used For | The Cards |
|---|---|---|
| Small Swarm Clear (2-3 Elixir) | Instantly killing cheap swarms for a positive trade and quickly cycling the deck | The Log, Zap, Arrows |
| Utility / Displacement (1-3 Elixir) | Physically moving enemy units to group them up for splash damage or pulling them to the King tower | Tornado, Freeze, Clone |
Balancing Your Magic
A well-balanced deck almost always features exactly two spells: one heavy/medium for structure removal, and one small for swarm control.
Choose your spells to perfectly cover the weaknesses of your primary win condition.
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