Xspyrit
DJ Dorion
The one blemish on Stone's performance that I can think of was that he wasn't a key guy during the 2017 Cup run, for whatever reason.
I think most people suspect he was injured in some capacity.
The first time (2015) he got slashed on the hand by Subban (which is the reason why we lost the series IMO), 4 assists in 6 games as a rookie.
Maybe he was injured too in the 2017 run but the playoffs are tighter, it's harder to score and he was still only in his 3rd NHL season. Bobby Ryan was the only forward on the team with a significant PPG (Brassard, Hoffman, Turris, Pageau, MacArthur only had a slightly better PPG). Many players played injured during that run.
Since then, Stone has 29 pts in 27 playoffs games with Vegas
Not only he is a prolific scorer (29th in Pts since 2017-18, 21st in PPG), he's also the biggest thief in the whole NHL by far (28.89/60 since 2014-15, second is Kevin Fiala with 22.41/60), is a possession monster and a perennial Selke candidate (votes since 2014-15 : 46, 18, 6, 22, 2, 5)
If all this wasn't enough, look at the passion when he plays, everytime his team scores. A guy like that not only makes you better, he fires you up.
Hey I am not saying all this to convince you, just to mention that we should say Mark "Elite" Stone when talking about him. I think Dorion meant in reality that he was totally ashamed that he had to trade him.