Apocalypse Penumbra Bobcat Penumbra Kavu Penumbra Wurm Penumbra, while unnamed, was the first mechanic to use creature tokens as the core of the mechanic
When I first saw Unpredictable Cyclone, the first comparison that came to mind was Possibility Storm, which has the same mana cost and basically the same mechanic except it triggers when a card is cast rather than when it is cycled
The main draw here though, is that Rokiric creates a 4/4 Red and White Golem token whenever you cast a multicolored spell
Create three tokens, get three 1/1s, and so on
Some players rotate their cards to the right and some rotate them to the left, so there was no clear way to read which version of the creature was correct when it was tapped
(Targeting opponents, anything they control, and/or cards in their graveyards is a crime.) : Add one mana of any color