Fire, Frost, or Poison: Dragon’s Breath
It really just depends on how you want to get your critter.
If you choose poison, will it be slow and painful? Or will that pesky thing go quietly in its sleep? Do you -want- them to turn weird shades of green and have everybody around them wonder what in tarnation is going on, or will they go peacefully with nobody the wiser?
Frost, well, that is a little bit more noticable. That there critter will turn a nice, shall we say, healthy shade of blue and be quite crystallized. They should be ready for your intent study for a later date, or later snack, or heck it is a convenient method of getting them out of the way for the time being.
Now fire, that is one way to get rid of a critter. There would not be a question on wether it lives or dies. Well… unless it was immune or resistant in some way. Then that would kinda stink in some way or form, for you, not them. With fire, though, it is quite flashy. They would go down in one heck of a roaring blast of brilliant flame! Unless you were a puny little thing that just happened to burp and this lick of fire comes out your nose and just happens to burn a dragon’s tail three times your size, then, you might be in trouble.
Fire, Frost, or Poison: Dragon’s Breath.