The Storm Scale is a rating system Mark Rosewater uses to rate the chances of a mechanic coming back to Magic. You can see
a detailed explanation of the scale on the Wizards website.
The key things to know are:
- It only applies to the item being printed in a Standard-legal set.
- It's Mark Rosewater's personal opinion, which others in R&D might not share.
- A low chance doesn't mean no chance. Madness returned while being rated an 8.
Mark also uses the Rabiah Scale for returning to planes, the Venser Scale for returning planeswalkers, and the Beeble Scale for returning creature types, though they all work they same.
A portion of the data behind this site came from the wonderful Storm Scale Database.
The site was last updated on January 9, 2019.
Creatures that transform into planeswalkers
Creatures with abilities usable by any player
Negative power or toughness
Phyrexian mana (new name)
Putting cards in opponent's deck
Sorceries castable with flash (like Rout)
Double-faced card with Morph which is a flip card on both sides
Nonbasic lands with basic land types
Planeswalker with banding
Sylvan Library (different colors)
Timeshifted legendary creatures
Vanilla creature at rare or mythic rare
Portal: Three Kingdoms plane
Sorin (if not trapped in wall)
Tribal set (some classes)
Titans (powerful as M11 titans)
Creatures bigger than Eldrazi
Full art vanilla creatures
Magic puzzles by Mark Rosewater
Six planeswalkers in a block