Metanephrops

This armored monster is really dangerous if you're under water. Do you think you're safe just because there's no water near you? Metanephrops can cast an entire sea against you!

Overview
Metanephrops is a good control monster and the only uncommon in the game who uses freeze. He also has access to stun and shields. The fact that he has both freeze and stun makes for a very good uncommon control monster.

Pros:

 * The only uncommon in the game with stun and freeze!
 * Good stats
 * Low cooldowns
 * Special has AoE Freeze

Cons:

 * High stamina costs
 * Bad trait, though it could help as stated below
 * No AoE attacks

World Water War III
If you run Bank Sinker, Hard Knock and Fast Stitch back to back, you could deny the target monster for a long time if nothing misses. You can replace Hard Knock with Huge Twinge for a higher damaging freeze move.
 * Fast Stitch (35 Water dmg + Freeze, 33s, 1 CD)
 * Bank Sinker (35 Metal dmg + Stun, 32s, 2 CD)
 * Aqua Armor (30% shield, 35s, 0 CD)
 * Hard Knock / Huge Twinge (Knock for 30 Metal dmg + 50% stun, 27s, 0 CD) / (Twinge for 40 Water dmg + Freeze, 40s, 2 CD)

Recommended Runes: 3 Speed.

Recommended Relics: Either the Cold Trap or the Punisher Trap to remove stamina for each enemy Metanephrops denies.

Recommended Allies

 * If Gastosquish runs Flooding, He can PER one enemy for no cooldown. This means that if Metanephrops freezes an enemy and the enemy gets his turn in, but loses it due to being frozen, Gastosquish can PER the enemy so that Metanephrops can freeze him again. Metanephrops' trait may be bad, but it can help since it will be harder to lower his accuracy so that he misses. You can use this strategy on the attacker of the opposing team so that he can never attack, even if he had stun immunity. The only thing that can go wrong is if Metanephrops gets dazed, stunned or frozen, or the enemy you want to target is hardened.

Counters

 * Monsters with stun Immunity that can fight back or monsters with the hardened trait like Electrex will either have a chance to miss Metanephrops' control effects or limit Metanephrops to only freezing them, so that the next turn they can't be denied due to Metanephrops not having PER. Electrex can also run Thunder God to finish off Metanephrops once and for all.