Choh'bei, the Red Dragon

Immortal (Spells and abilities cannot
reduce this creature's toughness less than 1)
Whenever you discard a card, Choh'bei, the Red
Dragon deals 1 damage to any target.
{3}, Discard a card: Reveal the top card of your
library. If it is a non land, draw that card. If it is a
land, exile and return Choh'bei, the Red Dragon transformed.