with every set release, Id say that the format is going to be a pillar for MTG Arena
This wouldnt be the first time WotC allowed cards into tournament play that werent originally designed for tournament play
Cards used to respond must either be Instant or have the Flash keyword
Aragorn, Hornburg Hero Aragorn, Hornburg Hero lets you crash in with creatures much more safely thanks to first strike, and gets ridiculous with double strike
Though cards such as Full Heal or Pokmon Center Lady (shown above) will remove all status conditions, it may be that your opponent isnt using any Pokmon which cause these conditions, so these could be wasted spots in your deck, better filled by the aforementioned, very flexible Switch, or even Cross Switcher, which is pictured above
Damaged sleeves or shiny back sleeves will NOT be allowed for this event