Since it has a white mana symbol on the card, it has to be in a deck that has both white and blue in its color identity
To get the variant foil frame in rare or mythic will be .53%, or roughly one in 189 packs, and thats for any rare or mythic with a non-EA frame, of which there are 36 to choose from
Most tokens in Commander that swarm the board can be nuked with this spell, with the only things saving them being large buffs from cards like Elesh Norn or +1/+1 counters
The ability to bounce any permanent allows decks to cover their bases, gives you the option to position things early or in a waiting game by bouncing a land and it makes sure that you'll get to trigger the discard effect
For example, searching "add three mana" returns cards containing this text block like Black Lotus , Lotus Vale , Gilded Lotus
Whether you crack a card from a pack, pick it up from a preconstructed deck, or win one from a tournament, the vast majority of official Magic: The Gathering cards follow this sizing guide