Aethermancer of Discord

Whenever a player casts a noncreature spell,
counter that spell unless its controller pays X,
where X is the converted mana cost of that spell.
Whenever Aethermancer of Discord attacks,
choose one:
•Destroy target artifact.
•Exile target nonland permanent.
•Target player discards a card at random.
"The chaotic essence of the aether bends to my will.
Who says chaos can't have a little structure?"