to cascade, you exile cards from the top of your library until you exile a nonland card with mana value lesser than the cascade card, which you may then cast from exile without paying its mana cost
For many of the cards like Fury of the Horde theyll say ..an additional combat phase followed by an additional main phase
There are so many schematic serial numbered Retro Artifacts worth money that an entire price list can be found here
However, if you do play into this monument with looters, wheels, or cards like Smellerbee, Rebel Fighter, Ox of Agonas or Lion's Eye Diamond, your production will shoot way up as will your advantage and chances of winning
Getting multiple cascade triggers off of a single spell is amazing and Call Forth the Tempest not only gives you three spells for the cost of one but deals damage while it's at it
Instant Color tag templates(None) Personal Tutor Search your library for a sorcery card, reveal it, then shuffle and put that card on top