You can detonate enemy summons.

[Aquillion]

Unsure if this is a bug or not, but: Contrary to its description (which says 'your' summons), you can cast Detonate on the hostile summons created by enemy summoners, making them explode per the talent's usual effects.

[Gliktch]

It's only a bug until the enemy AI is updated to also take advantage of this with player summons

****SuMMoNeR WaRs!!*** (heavy thrashy metal music playing)