I originally made this back in 2016, combining my disappointment toward Ulrich of the Krallenhorde with my virulent hatred towards the Prossh players that made up half my EDH playgroup at the time.

The body is way too pushed, but I don't think this ability is mythic-worthy. Ruric Thar is way better for that half, and Burning-Tree Shaman has its half as minor upside

You could get away with a 4/2 or even 4/3 that deals 2 damage each time.

I agree with both of dude's arguments.

I think James is right about making this a 4/2, though I definitely think this shouldn't be pushed to 2 damage, 1 is plenty. It does seem kind of weak to me, but considering this could trigger easily a few times per turn (maybe even several in a round), this is quite decent already. Also, against the right decks, this basically forces them to either not combo, or do as much of their combo as they can without being burned to death (which means they may likely leave themselves in Lightning Bolt range, or Shock range, too perhaps).

This should definitely not have 3 health. I would even say give it 1 health, but that's normally kept for a Spark Elemental style card. This should have low health, so it can be killed in combat, since spells can't be cast on it.

I really like this flavor by the way, and the card mechanic itself is pretty good too.

The activated ability rarely comes up in practice, and people just stop casting spells once Ruric Thar hits play in my experience