NOT UPDATED. No tips appear at the moment. Will update when the new meta settles.
Early version of Mulligan Helper tool (updates coming). Select your deck and the opponent's deck archetype, and look out for matchup tips.

Select Your Deck
Select Opponent's Deck Type
Aggro Combo Control Midrange
Mulligan Tips - Trundle Timelines vs Midrange
No tips for now. Check back next time.