They were made to support the magecraft mechanic, so cards with magecraft and prowess are a good fit
Similarly to Planechase, this is an optional format that needs to be agreed upon by players prior to starting a game
Its a very real fear, and its all captured in this piece
Once you move to declare blockers, an uncrewed vehicle cannot suddenly jump into action
Theres also a local game store prerelease date set for July 26, and a few other preview events you might want to check out (via magic.wizards.com): Magic Story : July 2 Debut and Previews Begin : July 9 Card Image Gallery and Previews Complete : July 19 MTG Arena Release : July 30 Global Tabletop Release : August 2 As stated on the official Magic the Gathering website, there will be new cards such as Mabel Heir to Cragflame, Lumra Bellow of the Woods, Cragflame, and so on, as well as season cards that will affect play even further
Being turned into a dragon now that's red