I think you have over-valued Mark Stone.

Russell is obviously a cap dump, but can still play top six minutes.
Puljujarvi and Yamamoto are very high-end prospects, which Edmonton would not get rid of, due to Puljujarvi ready to enter the NHL, and Yamamoto having lots of upside. They need wingers, so Stone and the oilers may be a good match, but I can't see them getting rid of both of those guys. As for the picks, I don't think Stone is worth two 1st rounders, especially seeing as how Edmonton would be weary on giving them up, as they could be lottery picks. What about this as the trade:

Yamamoto
2019 1st Round Pick (Top 5 Protected)
2019 3rd Round Pick

In my opinion, the trade proposal you made could be a potential trade for EK (minus Russell).

Also, TB cannot trade their 2019 1st or 2nd, because they already gave NYR a conditional 2nd in the McDonagh trade (which becomes a 1st if TB wins the cup).

Stone is a top 10 right winger in the league. That is a fair price. And JP is not a high end prospect.

Doesn’t seem nearly enough for Stone. He’s easily one of if not the best defensive Winger in the game and can put up points as well. He’s always either at or near the top in the league in getting turnovers. I think pairing him with either McDavid or Drai would work wonders in Edmonton. I can see them not wanting to give up both prospects but Ottawa has more of a need to field a better team now (since col has OTT 1st) and also at RW (especially with Stone gone) which is why I think they’d rather get Puljujärvi. Maybe counter with:

Puljujärvi
Russell
2019 1st (top 10 protected)
2020 1st (unprotected) (if Edm keeps 2019 pick this becomes 2021)

Also I traded TB 2nd back to them from NYR and gave NYR the 1st without the condition.

Stone in Edmonton would be fantastic no matter which line they put him on for sure. Hmm, I am still kind of stuck on the two first rounders (not fan of EDM, but I can't see them trading two).
Looking back on it, I do agree mine was a little low for Stone, so after seeing your counter, how about this:

Note: I am assuming Russell is a cap dump and takes away value on EDM side, so I will take him out

Puljujarvi
2019 1st (top 5 protected)
2019 3rd
2020 Conditional 2nd (becomes 1st if Stone gets back to back 30-goal seasons, or if EDM wins the cup)

What do you think of that?

Think that’s closer to the value without Russell involved. Just don’t know what EDM cap situation is because Stone is an RFA right now and will probably get a contract between 7-8 mill per. If it fits I think OTT might accept. Maybe add a lower prospect too to sweeten the deal.

I completely forgot EDM is near the cap, while they can make other moves to create space, trading Russell in this deal makes the most sense.

Updated Trade:

Puljujarvi
Kris Russell
Aberg
2019 1st (top 5 protected) - becomes 2021 1st if EDM picks in top 5
2019 2nd (this used to be 3rd)
2020 Conditional 2nd (becomes 1st if Stone gets back to back 30-goal seasons, or if EDM wins the cup)

Ottawa adds 6th Round Pick

Would this get it done? I personally think this is an overpayment, but I do not watch enough of the Sens to know Stone's true value, and seeing as how you are a Sens fan I will go with your judgement.

Think that would get it done! ?