Fair enough.
The Hedge Knights have participated in a minor tournament together with in our knights in York. Sadly, one of those landless vagabonds have been severely injured.*
Well, "in" shouldn't be there because they aren't inside the Yorkish knights, and "have" is the incorrect tense of the verb. It should be the singular indicative "has," as it refers to only one knight. He is the only one of the group who has been severely injured, therefore, his status is separate from the rest and should be conveyed with a singular indicative verb tense.
Also:
Pay for some medication, and send them on their way*
There is no period at the end of that statement and yet there is for the other option's statement.