Japanese 7/11s dont miss
It gives a player a way to put cards from their graveyard back into their deck, possibly recovering important cards, and then lets them draw a new hand of seven fresh ones, perfect for if one has more mana than useful cards prior to playing Timetwister
For lower Energy attacks the coin flips have to succeed to deal any damage, while for stronger attacks they simply add more damage to the base damage
Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a creature may become lethal if Amphibian Downpour becomes attached to it during that turn
And some treatments (like extended art or surge foil versions) are reserved for FIN Collector Boosters
She did not approve of Liesa's methods, and when Liesa made a pact with a demon lord, Avacyn declared her a heretic and destroyed her, along with her entire flight of angels