It would be worth the cost if the goal were to make Magic Arena the most realistic simulation of paper Magic possible, but with the goal being to make Arena the best new and intermediate player experience possible, changing to a chess clock would be a horrible move (although there should be some changes to the timer system, even with the goal of Arena in mind, with the biggest being that the timer should stop during animations that you can't play through)
It can be trickygreen is notoriously bad at getting lands into play
[casthaven]Frost Lynx[/casthaven], aka the new [casthaven]Man o War[/casthaven], isnt a super exciting creaturebut its going to do work
If you've ever enjoyed RPGs or loot-heavy video games like Diablo, Voltron scratches a similar itch
If you're enjoying the discard-matters angle, you can go further down that path
Magnetic lid for convenience