Summary
InSquad Busters, Supercell’s multiplayerparty game, spells are powerful utilities that can dramatically turn the tide of battle in your favor. They have a variety of effects, from those that are offensive or defensive, to the direct and the indirect.
Creative use of these powers can mean the difference between victory and defeat. Spells can either be discovered around the game map, unlocked through events, or unlocked by upgrading specific characters. Whatever the case, these spells can form the cornerstone of a variety of strategies, each excelling in their own particular set of circumstances. How effective they can be is up to you.

8Freeze Spell
Slows Enemies
While this spell has no direct offensive abilities, that does not mean it is any less useful. The ability to slow enemies is potentially a very powerful one, especially when used in conjunction with other strategies.
As this would suggest, this makes the spell particularly useful for defending. The onslaught of enemies can be slowed, effectively stopping attacks from a particular direction as long as the effect of the spell lasts. This will allow you to focus on any other dangers, minimizing the level of threats you will have to deal with at any one time.

7Furnace Spell
Damages Enemies Within The Vicinity
The function of the Furnace Spell is slightly more complicated than some of the more basic spells, but still fairly straightforward. It operates as a tool of area denial, locking down sections of the map and making them unfit for enemies to move through for as long as the duration of the spell lasts.
You can use this to more effectively route your foes, funneling them into choke points where they can then be more easily dispatched. In this way, it’s less about direct damage than some of the others.

6Shrink Spell
Shrinks Enemies Down
If other spells are useful for making your own attacks more powerful, the Shrink Spell has, in essence, the exact opposite effect. Upon casting this spell, all enemies inside of the area of effect of this spell will be shrunk down, meaning that their attacks can now be safely ignored for as long as the spell lasts.
Use this to focus on more important targets, or to give yourself some breathing room in a tight situation. This won’t take them out of the fight for good, but it can mean the difference between a win and a loss.

5Bomb Spell
Damages And Pushes Away Enemies
Big problems sometimes require big solutions, and you can’t get much bigger than this. If you absolutely need to get rid of an enemy threat, you won’t find a better option than the Bomb Spell, which not only damages enemies heavily but also pushes them away from the area of the blast radius.
When thrown, it will damage enemies and objects in the game world alike, leveling everything in its path. It’s not subtle, but it works, and sometimes that’s exactly the kind of firepower that you need.

4Heal Spell
Heals All Friendly Units
The Heal Spell is for the most part self-explanatory, and therein lies the utility of this spell. Using this spell benefits not only you, but anything else in the vicinity that is on your side.
Using this spell at just the right time can turn the tide of a fight, snatching victory from the jaws of defeat. This means that you’ll get the most mileage out of using this spell the more friendly units there are in your vicinity, requiring some coordination on your part.

3Lightning Spell
Damages And Stuns Enemies
Would you rather damage an enemy, or stun them? With the use of the Lightning Spell, you’ll no longer have to choose between the two. When stunned, foes will then be more susceptible to further attacks, with the damage only serving as a bonus: the proverbial cherry on top.
If that wasn’t enough, it can affect multiple enemies at once. While this makes it a good tool for both attacking and defending, the real utility shines when you find yourself overwhelmed by enemy attacks.

2Cannon Spell
Fires On Enemies Within Range
If you’re a fan oftower defense games, this spell is the choice for you. Placing a cannon down means that all enemies that come within range of the cannon risk taking damage, either locking down an area, protecting others, or covering your retreat.
It is not, strictly speaking, an offensive tool, at least not as directly as some of the other spells. That does not mean it cannot be used in a fight, however, bolstering your offensive abilities when used smartly.

1Rage Spell
Temporarily Increases Attack Damage
There’s no defense like a good offense, and offense is exactly what the Rage Spell will help you with. For ten seconds, all of the damage dolled out by your units will be significantly boosted, augmenting their offensive abilities greatly.
The use of this spell tactically can decide the outcome of many types of encounters, whether used in a pinch or to make your victory all but certain. It’s simple, but that simplicity is also the greatest strength of this spell.