Draining Whelp... (Whelk?)

Flash, Flying

On enter, counter target spell. Gains one +1/+1
counter per mana in the countered spell's value.

"I - I don't think Jayce meant 'whelp', master...
N-no, I'm sorry, you're right. I'll cast it as written.
It's just... It feels like a typo. A 'whelp' is a what
now? A puppy? But shouldn't this look like an eel?"
—Minna, Wily Illusionist