The one magic item in all of Fantastica that can always be counted on is a medallion whose design comprises two overlapping loops.
1. Yajilin - standard Yajilin rules
2. One Off Yajilin - standard rules, except that all clue numbers are either one too high or one too low
3. Full Lane Yajilin - standard rules, except that horizontal clues refer to blocks anywhere in their row, and vertical clues to blocks anywhere in their column
4. Clued Loop Yajilin - standard rules, except that clues refer to line segments going in that direction, not blocks (i.e., cell walls crossed in that direction)