Rule 608.2d, in turn, states (emphasis mine): 608.2d If an effect of a spell or ability offers any choices other than choices already made as part of casting the spell, activating the ability, or otherwise putting the spell or ability on the stack, the player announces these while applying the effect.Although it might be completely trivial and unnecessary to state, which half of a split card to cast is a choice (made during the casting process)
MTG Sleeves Officially licensed from WolfSkull Jack
The above is the Level 1 way of thinking about it, however it will be a lot more involved
Notably, none of these cards will be banned in any other Arena format, including Brawl and Timeless, and none of them are actually in the main Edge of Eternities set
Charleston Library - Conference Room Come join us as we read books, sing songs, and play games that stretch our imaginations
Chart shows the price of Uxie #65 at the end of each month going back as long as we have tracked the item.