No from MTL

Gardiner had 52 points last year, 47 assists which was 8th best in the league for D-Men, and the only player with a smaller cap hit than him in the top 10 is John Carlson whose contract expires July 1st. Gardiner's does not, he's signed at a steal of $4M and the fact that his inconsistencies were scrutinized to such a high level this season is only going to make him want to play better next season so he's not going anywhere at least until his contract's up. Especially not in exchange for a 30 year old signed through 2021 with a $5.5M caphit.
And signing Vanek doesn't make much sense with the Leafs plethora of prospect wingers tearing it up in the Marlies.