How many abilities are in Water TD?

Four. The store lists a fireball, an ice wall, a lightning strike and a power that sends the flood back. The trailer's skill tree names them Fireball, Frost Wall and Lightning; the fourth node's name is not readable in our capture.

When do I unlock abilities?

In the skill tree. The trailer shows ability nodes on the same map as the turrets, with a Clear cost: Frost Wall is marked 1 Clear. The exact unlock order and the other costs are not published.

What does Frost Wall do?

It raises a wall of ice. The store describes it as an emergency wall; players use it to block a channel and force the flood to reroute. It is crowd control, not damage.

Do abilities have cooldowns or charges?

Not documented. The store and trailer do not show cooldowns, charges or a recharge cost. Test them in the demo before relying on one as your only emergency.

Water TD Abilities: Fireball, Frost Wall, Lightning and Flood Reversal

Q: What is the flood reversal ability?

The store says it sends the whole flood back the way it came. The trailer shows a fourth ability node at the bottom of the tree, but we could not read its name; we call it the flood reversal until the launch UI confirms the label.

The four abilities

Ability	What it does	Best used for	Confirmed cost
Fireball	A damage burst at a point	Deleting a clump before it reaches the bank	Not published
Frost Wall	Raises an ice wall	Blocking a channel, stalling a surge, forcing a reroute	1 Clear (trailer UI)
Lightning	A lightning strike	A line or a cluster, depending on its shape	Not published
Flood reversal	Sends the flood back the way it came	The emergency when the line is about to break	Not published

The first three names are printed in the skill tree in the official trailer. The fourth node is visible but its label is not readable in our capture; the store’s description (“send the whole flood back the way it came”) is the source for what it does.

Fireball

The straightforward damage ability: pick a point, delete what is there. The store’s own language — “throw a fireball” — puts it first in the list, which fits an early unlock.

Use it when a clump is about to reach a turret or the base and your turrets cannot kill it in time.
Do not use it on a thin stream; a burst that hits ten drops is a wasted ability.
Unknown: damage, radius, cooldown.

Frost Wall

The most interesting of the four, because it changes the map instead of the damage count. The store calls it “raise a wall of ice”; the trailer shows it at 1 Clear.

Use it to block a channel and force the flood to take the long way around — ideally into a kill zone you already built.
Use it as the emergency brake when a bank collapses and the flood finds a new path.
Do not treat it as permanent. The wall is ice; the flood is water. We do not know whether it melts, has HP, or expires on a timer.
Unknown: duration, size, cooldown.

Lightning

The trailer names a LIGHTNING node in the upper middle of the tree. The store lists “call down lightning” among the abilities.

Use it when the flood is in a line or a tight cluster, if the strike is area-based.
Test it in the demo before spending Perfect points around it: we do not know whether it hits one point, a line or a chain.
Unknown: damage, area, cooldown.

Flood reversal

The store’s fourth ability is the most dramatic: “send the whole flood back the way it came.” The trailer shows a fourth ability node at the bottom of the tree, but we could not read its name.

Use it when a surge is about to overwhelm the kill zone and you need time to rebuild.
It is not a win button. Sending the flood back does not kill it; it buys time. If your damage is too low, the same flood comes back.
Unknown: how far back it pushes, whether it affects the whole map or a lane, and its cooldown.

How abilities fit the skill tree

Abilities are bought in the same tree as turrets, with the same three currencies:

Clear (blue) buys unlocks. Frost Wall is 1 Clear; the Laser turret is 2 Clear.
Basic (white) buys stat nodes around the turrets.
Perfect (gold star) buys build nodes and the high-end upgrades.

The practical reading: abilities compete with turrets for Clear points. If you can only afford one unlock early, the choice is between a second turret and an emergency button. For most players the second turret is the better economy; the ability is the insurance. The skill tree page breaks down the currencies and a spending order.

Combos worth testing

Frost Wall into Mortar. Block the channel, let the flood pile up, then drop splash on the clump.
Fan into Fireball. The Fan holds the water in place; the Fireball deletes it.
Lightning on a straight. If the strike is a line, a straight channel multiplies it the same way the Laser’s beam does.
Reversal after a bank collapse. The moment the flood finds a new path is the moment the emergency ability earns its cost.

What we do not know

The fourth ability’s official name.
Cooldowns, charges and whether abilities cost anything per cast.
Damage and area for Fireball and Lightning.
Whether Frost Wall can be placed anywhere or only on water.
Whether the launch build adds abilities.

We update from the release build rather than guess. If you want the turret side, see all seven turrets; for the economy, see the skill tree.

Water TD abilities