The main drawbacks that I saw were dependence on external processing power, and short battery life, both resulting in tethered devices
Outer Sleeving : Place the inner-sleeved card into the outer sleeve, typically in the opposite direction (i.e., if the inner sleeve opens at the top, insert it into the outer sleeve with the opening at the bottom) to provide maximum protection against environmental factors
Hitting 200 every turn means that Goodra will be two-shotting essentially every VSTAR and VMax in the TCG
Kaldheim is currently scheduled to release on February 5
Small surface spots may sometimes be cleaned safely, but widespread, hidden, or water-damage-related mold should be handled by trained remediation professionals
You could build a Niv-Mizzet Reborn deck that only uses cards from Ravnica and focuses on the interactions between the guilds