For Imgor:
The wasps continue circling around his position, ready to strike. The one circling anti-clockwise tries to play it smart and gains altitude, trying to go over you and hit you in the back, the other two instead go for the more obvious approach and try to sting you from the outside. However, something hits you like a brick, a memory of something Joshua told you in your private tutoring. "If two specimens enter the rune at once, it shall have... disastrous results on your pysche if you allow the rune to activate." The first one successfully goes over your head and behind you and stabs you in the back, injecting some sort of fluid dangerously close to your spine. The other two soon enter 'range', you parry the first strike of theirs by raw instinct.

For Alexander:
The 'Ironback', it's most common name, slowly continues moving away from you, and yet you continue trying to be as minimally threatening as possible. It keeps on walking away until it's backside reaches a tree, and it decides to climb it up. Backwards. Well, your forethought on the abilities of this creature was correct. It goes up halfway, it's surprisingly light body not curving the tree itself too much. It continues hissing while putting up it's 'front legs', tipped with sharp looking claws, in case you try to attack.

For the others:
Nikolaus and Amaryllis would hear a CRACK, and then something beginning to fall over behind them. By pure instinct, Amaryllis sidesteps to the right, Nikolaus, the left. In between them a tree falls, the branches of it annoyingly scratching the both of them. They'd both turn around to see the perpetrator, and see a strange, very large humanoid, it's arms appear to be covered in feathers, and has two additional wings behind it. Instead of hands, its' arms abruptly end into hardened points of bone. It also has no face, what skin was left appeared to have been flayed off, revealing a skull with no eyes, but muscle still supporting it. Obviously... this is a Beast... Likely made of what used to be a reclusive Harpy. It's 'mouth' is full of bile, and disgustingly curving, and long teeth, haphazardly pointing in every which way. It looks like it would have difficulty not impaling itself whenever it wished to close it's mouth, even.

It growls, the poor, dumb thing is obviously in pain, even with it's aggressiveness apparent. It quickly lounges to it's right, near Nikolaus, Harpies had unnatural speed, and being infected by the Plague only increases that potential. In seconds it circles the duo until it's to Amaryllis' right, ready to pounce. From Joshua's teaching, Nikolaus can tell it plans to take a chunk off, dodge, then finish her off before moving in to take him on. The tall creature, Nikolaus and Amarrylis' heads coming up to its' stomach at most, begins its' simplistic plan, but there is enough time for Amaryllis to parry at least once.