Rolled 7, 15, 2, 3 = 27 (4d20)
>>5836552>>5836453>>5836250>>5836232>>5836226>>5836212A <Clone> of yourself could do the job at hand, of course… But soulless or not, a part of you still felt odd about creating a duplicate of yourself to serve as some sort of sacrificial victim. The thought of seeing your own face twisted up with agony, your own body blistering and forming scaly sores… No. No thank you. Besides, while no living organism could long survive the internal environs of a <Summoned> elemental, that didn’t mean that you were without options. You were a skilled mage, capable of the second level of the <Summon Elemental> spell… Which meant you didn’t NEED to rely on water, when an ICE elemental could do just as well, and function like your proxy just as well as any <Clone>, and without risking infection!
“<Summon Elemental>,” you spoke the words of power, and formed the arcane sigils in the air with ethereal fingertips. Still in your <Free Movement> form, you stepped carefully around the edge of the water as the living construct of alien frost took shape above the water, in vague elven effigy—your own effigy in miniature, instinctively the first form that came to mind. You reached out to the elemental, as it reached out to you, and you passed it the flask which you had planned to sue to collect the research materials. The ice elemental nodded—as you unconsciously nodded—and its bobbing, floating body submerged itself and sunk beneath the surface. It was only for a moment, requiring a great deal of concerted effort for something so buoyant, but ice was really the only option—fire or lightning would boil the sample, water could not carry a physical object so readily or dive without contaminating the water around it with its own exatraplanar essence, and earth would not be able to rise again once it had sunk.
It would have to do.
Elementalism 3d20, +1 bonus roll for Natural Philosophy since you're attempting to trap/collect animal samples, and DC 13 thanks to a clever write-in