Sen is conceptually good, but limits herself to something close to River's level. She stays on the defensive to start but adds in carefully timed attacks as she gets a sense of River's fighting style. River can probably get some hits in but nothing decisive.

Means she's having fun.

She tries harder, of course.

Sen keeps to the same level so any improvements River makes are reflected in how well the bouts go.

That's a bit motivating, but, well, she actually really enjoys being challenged, and when she notices this asks Sen to step it up.

Sen is happy to oblige and steps things up a level periodically as they continue.

Excellent.

She does tired out eventually, though - mostly mentally.

Sen calls for a break when she notices River getting tired and conjures up a snack and some drinks.

"Thanks," she says, settling in to investigate the snacks and drinks.

There are crackers, fruits, nuts, and granola. The drinks are water and a number of types of fruit juice, some carbonated some not.

She's most interested in the carbonated fruit juices, and in fruit and nuts and granola. She ignores the crackers.

Sen nibbles at a bit of everything, she personally sticks to water.

"What next?" she asks after one mouthful of fruit and nuts.

"Well, we could spar more the way we were... I could also shift into having the body and equipment of one or more of the guards and we could do more training like that. I'll train you for as long as you want, as you are you're much better than the guards probably are but... there's a lot of them and they're armed so I worry for you."

"Practicing against more opponents might help?"

"I can easily do that then." Sen's features bulk out as her lithe build morphs to something stockier and also a bit taller. "Or did you mean practicing against more opponents at once?" There's a slight echoing quality to the last sentence and Sen steps both left and right leaving two identical bodies standing in front of River.

Grin. "More at once, but bigger works too."

"Let's start with two and go from there." Sen engages, when it seems like River is ready. She's fighting at a somewhat lower level than before.

River - 

Does really, exceptionally well against multiple opponents actually.

Sen is glad, she adds more slowly working up towards ten or wherever River reaches her limit whichever comes first.

Ten is well before her limit. 

Sen will slowly increase the skill they're using and generally look for any signs that River is getting tired or overwhelmed.

Any kind of 'done fighting' takes a very long time; River enjoys combat, it seems.

Sen does not mind at all. Most people around the dream aren't as enthusiastic.

Doesn't seem to bother her much, so long as she has someone to fight. 

She does eventually get tired, though, or at least ready for a break. 

"You're very good at that."