Kind of like a flying Kiln Fiend, in an instant/sorcery-heavy red/blue deck, this card can easily win you the game without any other creatures on the field
An otherwise simple "draw 3" spell becomes "put a dozen or more cards into your graveyard" which often finds a handful of creatures to put into play on the same turn
The price went up on a number of Legacy staples, including Underground Sea, Volcanic Island, Lions Eye Diamond, Force of Will, Rishadan Port, and Wasteland
Cards like Living End, as far as Cascade is concerned, have a mana value of zero, meaning they are totally fair game for Cascade
Not only do spacecraft near charge counters to become creatures, theres also an entire Commander precon that can go wild with charge counters