Why not just use a not very highly leveled skylander? You arent losing anything if you accidentally reset that level 4 Fright Rider...
First of all, because Skylanders aren't the same as Crystals.
Secondly, resetting isn't the issue, since that's the intended result. The problem is that it could potentially corrupt the figure completely, rendering it permanently unplayable. That is a major risk, regardless of the figure in question.