Minion Damage

Post your 0.9.3 feedback for this support here.

Make sure you concisely state your character build, level, and other complimenting abilities you have when you talk about a support.

All feedback after this point is for 0.9.6.

Currently no, as that's not dealt as damage due to technical limitations, but calculated out and subtracted from enemy life.
In future, yes it will, as this gem increases all damage the minions deal, and the explosion is damage dealt by the minions.

Feedback after this point is for 0.9.7

In terms of behind-the-schenes mechanics, yes, totems are minions. so are traps and mines.
In terms of actually applying anything, Totems, Traps and Mines are considered separate from minions. Nothing which specifically applies to minions will apply to them.