Memnarch, Praetor Prime

(Jin-Gitaxias, Progress Tyrant)
Whenever you cast an artifact, instant, or
sorcery spell, copy that spell. You may choose
new targets for the copy. This ability triggers
only once each turn. (A copy of a permanent
spell becomes a token.)
Whenever an opponent casts an artifact, instant,
or sorcery spell, counter that spell. This ability triggers only once each turn.