Cactus

The Cactus is a stackable type of ally.

Stats
HP: 3 (Paper-thin)

Damage: 0.8 (Lesser)

Projectile: Spike

Cost: 15 gold nuggets

Recharge: Fast

Ally Boost: Shoots 24 spikes a second for 3 seconds. Duration is halved when there are two and cut in third when there are three; the overall number of spikes (72) remains the same.

Strategy
At most three of these can occupy a square and each deals damage to things, although Spiders are only hit by the bottom two. They can be planted anywhere, but function at a normal pace on sand, unlike most other allies.

Almanac Entry
Cactus

Cactus can stack to save space.

Damage: Light

Range: Long

Cost: 15

Almanac Entry: Cactus likes the heat. He can't get enough of that hot sand. Not surprisingly, he loves Death Valley, California.