Medusa

Medusa in Clash of Desert is exactly the same as the elite hero Serpent Queen from Castle Clash and not at all like their legendary hero named Medusa

Problem with Cleric
Medusa does poorly against Cleric.

For example consider a level 79 Medusa with skill 4 and no useful talent against a Cleric of the same level and skill. Each pulse from Medusa does 45 + 1422 * 15% = 258 damage (plus a random factor) to Cleric and gives him 15 energy. Therefore seven pulses will inflict around 2000 damage to Cleric and give him an additional Proc. (Note that he has no cooldown.)

A skill 4 Cleric heals himself (and four friends) by 1600 * 230% = 3680 and boosts their attacks by 25% (which stacks) every time he procs.

Therefore Medusa is healing Cleric (and friends) almost twice as fast as she hurts them while boosting their attacks against her own friends.

You'd best turn away from Medusa and lock her up in a magic tower.