The Hermit Crab-Man

The Hermit Crab-Man befriends small creatures of the sea and adopts them. In turn, the crabs swore loyalty to their new master and train to be the best fighters in all the lands.
{t}{1}{u}{w} - Create one 1/2 Hermit Crab token
{x}{1}{u}{u}{w}{w} - Create X Hermit Crab token(s) where X is the amount of mana paid