"Rank-Up-Magic", abbreviated "RUM" (
Most "Rank-Up-Magic" cards share the following text base:
- Target 1 Xyz Monster you control; Special Summon from your Extra Deck, 1 Xyz Monster that is 1 Rank higher than that target, by using that target as material. (This is treated as an Xyz Summon. Transfer that target's materials to the Summoned monster.)
Some "Rank-Up-Magic" cards cause the Overlay Units of the new monster to change to a variety unique to them, such as "Rank-Up-Magic Cross Into The Blue" changing the Overlay Units into blue jetstreams coming off of the Xyz Monster's wings.
Two sub-types of "Rank-Up-Magic" cards exist: "Double-Rank-Up-Magic" (
A number of counterparts to "Rank-Up-Magic" cards, including "Rank-Down-Magic", "Rank-Slide-Magic", and "Rank-Cross-Magic".