Alright Ullion, let's get prepared and do it
Remember, our first priority when it gets low to the ground is to take out its wings.
As an animal that relies mostly on flight to move it won't be very mobile on the ground, we will affectively have it immobilised. We can then take our time killing it, since being faster on the ground will allow us to dodge or block most of its attacks. We can also back off for a breather or to flee if need be, as without flight it will have a lot of difficulty following us. Also without its wings, it will have to resort to the most basic attacks of biting and clawing, focus more on avoiding the teeth as they are poison coated. It might be smarter and try to trip us or attack with its tail, so keep a wary eye on that.
Also, it's a small dragon, and I'm a big heavy tank, I might be able to pin it to the ground with my weight alone. We will see how small they actually are first. They can't be that strong physically, animals that fly have hollow bones and thin skins to keep them light, and animals with poison rarely have other strengths, as they tend to rely solely on the poison for defence and offence. That means it's armour is likely weak, and it should not be difficult to kill once immobile . I could be wrong though, always expect the unexpected.
Last thing, watch it's eyes, the glow gives away when it's about to attack.
Edit: I just had a great idea, I can use my bag as a mussel! If I can get the bag around its mouth (it's a strong bag it should work) then it will not be able to poison us! Genius :D