That would basically be drafting Svechnikov over Dahlin if presented the opportunity as I have Rantanen as a pretty close comparable. Still, this interests me. Colorado is a team that has strong balance, particularly in the mid to long-term. From afar, Rantanen for Dahlin seems like it would throw it out of balance. The Avs win the trade, but does it actually make them a better team? I suppose turning around and trading Makar or Byram to backfill is a possibility. However, there's a question about the quality of the forward asset that could be returned in a trade like that.
I just couldn't pass up a Dahlin - Makar pairing.
Considering that Girard looks like a top pairing guy right now as well, that probably gives you the best D in the league for the next decade or so.
It also frees up Byram for a trade (Huberdeau- Byram swap would make a lot of sense) and enables you to make a decent offer to Hall as well (with Huberdeaus cheap contract you could maybe even get both if Hall doesn't seek max money)...
There is also a chance that you can get Dahlin on a steal contract considering he has not reached his full form yet and only has 1 year left.
I love Rants but I think that if you can trade a superstar winger for a few guaranteed Norris trophies (between Makar and Dahlin there should be a few of those), you do it.
Winger and goalie are the two positions where you can always get quality sooner or later if you have the assets available.
Norris level Ds or Hart level Cs? Not so much...