They received a one-off reference in Jumpstart: Historic Horizons , an MTGA -only set
Invasion of Alara has a slightly better version of the Cascade mechanic
With a simple tap, it lets you bring your zombie friends back from the graveyard for another round, and its ward tax of 2 life is annoying against targeted removal
For some extra copying, you can copy Esper Terra to copy even more summons , and essentially keep token copies of Esper Terra around while still constantly transforming the original
If you can line up a Windgrace's Judgment against all opponents biggest creatures, you gas up your hand while you make Kraven bigger than that 6-pack of his
Crew and saddle keyword abilities mean that youre tapping creatures to animate vehicle artifacts and to improve your mounts performance, so youre always turning a bunch of cardboard sideways in these kinds of decks