This base tower can evolve into aura towers that can affects surrounding towers or units.

In this basic form you can further upgrade this tower into:

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Short Aura Tower

Gives different Auras for your buildings or the units.

Stats
Cooldown0
Range0
Upgrade cost0 G
Total cost150 G

Upgrades into:

Short Attack Speed Aura
Short Attack Speed Aura
Short Yin&Yang Aura
Short Yin&Yang Aura

Upgrades from:

Aura-Tower
Aura-Tower