Trample, flash, flying the list goes on
Kianne, Corrupted Memory Flash is a powerful keyword
If the target creature is no longer a legal target as Resistance Reunited tries to resolve, it won't resolve and no creatures will gain indestructible
Mouth of Ronom and Ice-Fang Coatl become repeatable removal, Phyrexian Soulgorger can be brought back once you've enough fodder to feed it, and if you're really up for the challenge, you can go all-in on the Mill route with Iceburg Cancrix and a series of follow-up Snow plays from the graveyard
Cards like Thraben Inspector, Expose Evil, and Tireless Tracker helped introduce Clue tokens and made players feel like they were uncovering secrets on the battlefield
If I have, it's because hexproof stopped me from targeting them