Equip variants or equip abilities with restrictions, like the "equip legendary creature" ability of Wrecking Ball Arm, are still equip abilities, and their costs will be reduced by Cloud's last ability
Slower decks love these and they often only have the downside of not being untapped on the earliest turns of the game, which is a sacrifice that plenty of decks are more than happy to make
Since she brings the Grixis colors to the table as well as an instant/sorcery matters slate of themes, Kess is strong as she has access to the colors of removal, counters, burn, bounce, and card drawing
This time our newest Old School additions are a Jihad (GD) and two Juzam Djinn (PL - GD) from Arabian Nights as well as three Antiquities : Candelabra of Tawnos (PL), Power Artifact (PL), the good old Mishra's Workshop (GD) and different Mishra's Factory (Version 1, 2 and 3 in various conditions)