ver.

Earthquake

Nature
Sorcery
Level 3
Charges: 4
Invoke an earthquake with a 7 tile radius.
Each tile in the area has a 50% chance to be affected.
Units on affected tiles take 21 physical physical damage.
Walls on affected tiles are destroyed.

Attributes:

21Damage
7Radius

Upgrades:

2 - Safety
Earthquake will not damage friendly units.
2 - Aftershocks
Whenever you cast Earthquake, Earthquake gains +2 radius for 2 turns.
4 - Magnitude 8.0
Stuns for 7 turns.