(I thought we were in the hallway outside the main room, not still back in the round entry room; I will post on my understanding, since 5' will matter)

Jon stays focused on the task at hand, the horror of the goblins' "fun" , while creative, is not fundamentally different from what he has seen before. He moves into the room and launches an arc at the nearest goblins.
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1. Stride to L7 (columns are misaligned, so going to the left of the letter)
2&3. electric arc (1d4+3)[6] basic reflex DC 16, hits )P11 and Q12