Mesonyx

Mesonyx is a Fire attributed card made by DinoFlame. It generally isn't of much use, but it has an ability that can leave foes with Dig defenseless.

Whale Ancestor
For use of a move this card can be treated as Water attributed.

Keen Senses
Your opponent can't use the Dig ability, and any cards with that ability can't attack.

Claw Swipe
Claw Swipe deals -comparetively to its owner- average damage, but has no added effects.

Origin Information
Mesonyx, the "Middle Claw", may look like a wolf or dog, but this resident of Eocene North America is actually belived to be an acestor to whales.

Using Mesonyx
In most cases, Mesonyx has little to limited use. However, Keen Senses makes it very useful for disabling otherwise pesky cards that have the Dig ability.

Defending against Mesonyx
As long as you aren't using a creature with Dig, it's just straight-forward attacking to take down Mesonyx.