I think any card that lets you remove your opponent's characters before they have a chance to quest with them or get any value out of their abilities is going to see play
Ashiok, Nightmare Muse Following the release of Ob Nixilis Reignited, there was a design slump of nonstop 5-mana planeswalkers with the same basic design: +1 for card advantage, -3 for disruption, and a game-winning ultimate
Thankfully both Wilt and Natures Claim will also take care of Void Mirror and Damping Sphere, which arent in sideboards specifically for Tron, but have some potential to come in
Enchanted versions will carry a premium early in the set cycle
Interestingly, the two signpost gold uncommons curve into each other perfectly: by turn four, you can have six lands in play and six power on the battlefield, putting you well ahead of your opponent