Ruric Thar, the Unbowed legendary creature from dragon's maze faq rulings spoiler

Ruric Thar, the Unbowed 4RG

Legendary Creature — Ogre Warrior
6/6
Vigilance, reach
Ruric Thar, the Unbowed attacks each turn if able.
Whenever a player casts a noncreature spell, Ruric Thar deals 6 damage to that player.

http://media.wizards.com/images/magi...jpk3jr5_EN.jpg

Ruric Thar’s ability triggers whenever any player casts a noncreature spell, including you.

Ruric Thar will deal 6 damage to the player before the noncreature spell resolves.