Tiny question on Trampling

[onomastikon]

Hello, I have been using and liking the Great Mother as a fighting pretender, at least in her own dominion (with Ulm -- magic drain 3, not much casting going on, and I tried settings with lower magic and dominion 7 -- she then has tons of hit pointes). Up till now, I have put girdle of might on her, boots of messenger (to make running and trampling less fatigue-costing -- is thas right?), and two shields. But what happens if I put a weapon on her, can she still trample, or will she default use that weapon? I would like, for example if she comes across a Son of the Sun, for her to be then not totally useless when she charges in (I have her set on cast earthpower, cast might of gaia, cast barkskin, attack rearmost).

Thanks for that help.