Overpowered. Means that there are very few non water creature that can be played.
Why? Most creatures have over 2 base HP.
The only notable exceptions are most fire creatures.
Let's see. I'll not count dragons and nymves.
Entropy:
Abomination: This survives
Fallen Elf/Druid: Dies
Lycanthrope: Dies
Maxwell's Demon: Dies
Death:
Condor: Dies
Skeleton: Dies
Virus: Dies
Flesh Recluse: Survives
Mummy: Survives
Gravity:
Armagio: Survive. Well... Armagio survives a lot.
Sapphire charger: Survives
Graviton Mercenary: Survives
Othyug: Becomes useless
Earth:
All creatures except gnome rider survive.
Life:
Horned Frog + Cocatrike: Survive
Rustler + Forest Spirit: Die
Fire:
Lava Golem: Dies
Fire Spirit: Dies
Ash Eater: Dies
Phoenix: Suns
Light:
Photon: Dies
Pegasus: Dies
Guardian Angel: Survives
Air:
Wirm: Survives
FFQ: Survives
Firefly: Dies
Dragonfly: Dies
Time:
Dejavu: Dies
Fate Egg: Dies
Scarab: Dies
Anubis: Dies
Darkness:
Everything dies
Aether:
The immortals doesn't count?
Phase Spider: dies
Spark: dies more?