Karanime of the Sentient Ice

Defender
{10}{u}{u}{t}: Sacrifice Karanime of the Sentient Ice. Prevent all damage that would be dealt to
you next turn. You gain an emblem that says
"Counter the first spell each opponent casts each
turn unless they pay X, where X is twice the converted mana cost of the spell."
Turned into an ice cube by an arcane misfire,
Karanrime keeps himself alive through sheer force
of will, and a splash of magical talent.