8 regulation marks on 8,475 card records

The other 15,437 of the 23,912 card records carry no mark. Standard and Expanded count the cards TCGdex records as legal in each format.

Marks in letter order

Mark	Sets	Cards	Standard	Expanded
D	21	1,256	0	1,253
E	15	1,181	0	1,178
F	11	1,156	0	1,156
G	16	1,647	1	1,647
H	13	1,303	1,303	1,303
I	13	1,281	1,281	1,281
j	1	1	0	1
J	6	650	650	650