Well, totems are 2 AP for me. Also IF it would be that way then MAYBE. But, a battering ram hits 2 pc or 2 pc and additional 3 totems... where exactly does this make the enemy waste any additional AP? Doesn't in my book.
Enemies only seem to (directly) attack summons if there is no pc within 2-3 screens (which is, no doubt, a clever move of the AI actually). That on the other hand means all these player characters are OOR and cannot act either, so you are hindering yourself too for several AP. Otherwise you would need to be in range, which brings it back to point one.
And all the other shortcomings still stand, like the dynamic or "warm up" time etc, or the fact that there is no need for an enemy to waste AP if he's already half dead and CCed by the fighter.
Also forgot to mention: an enemy can easily destroy multiple totems with for example a single battle stomp or whatever. Cost? 2 AP for the enemy. Summoner cost? 5 totems for example: 10 AP.
I haven't had a lot of time playing the game, so I've only gotten a bit of time recently. I've only fought a couple battles with the summoner, but I think you might be using the totems wrong, and some other people are using Dimensional bolt wrong. The totems are very fragile. Dimensional Bolt is a random surface which could have unwanted effects if you place it in the wrong spot and get the wrong result.
The way I'm using DB is to place it on a blank spot out of the way, not under an enemy or on an existing surface. That way I won't accidentally heal a zombie with poison, or a fire elemental with fire, and I won't trigger a huge explosion by placing DB onto oil/poison and accidentally lighting it up. I am using DB as a tool to make a surface, not as an attack.
Similarly, I also put the totems off to the sides, where they can shoot at the enemy, but the enemy can't really hit both the totem and me. If I'm putting the totems in a spot where a charge can take out multiple ones and hit me, I'm doing something wrong.
