A small preliminary: I do not care if low PR char farm me.
The only thing I care is whether I can win against some other characters with PR significantly higher than mine.
So, a strategy change that would allow me to add some other high pr to my fightlist is good. One that would make my char more difficult to defeat from, say, single CoC mages, is pointless.
Is the little Fireball on the first minion worth it?
If the opponent is a multi-minion and does not use DM, very much so:
Model Tequito.
I like the other suggestions of Sacredpeanut, except the one of upgrading my bow: it is already too large for my PR.
I have very little experience using GA. However, if I use DM instead of AMF, no matter whether I use GA or COC or MM, single ToE mages will always defeat me: I can live with it. On the other hand, I think that against mages in multi-minion teams, CoC+ToE is more effective than GA+MM: the ToE will protect the mage from the AMF backslash (which is a big problem with my present setting: my mage often dies of AMF), and the CoC will damage the opposing mage in the back. With GA+MM, the only thing damaging the opposing mage(s) will be the GA.
MM is rarely a problem against the present configuration: usually, I kill them before they kill me. However, if I lose a minion (because I switch to either ToA or ToE), it could become problematic.
Thanks for the suggestions, and keep them coming.