Most valuable Forbidden Light cards (2018)

The most valuable Forbidden Light card is Lucario-GX 135/131 at $115.80 for an ungraded Near Mint copy. The ten most valuable together come to $647.11, 52 % of the whole set's market value. Forbidden Light is a 131-card expansion in the Sun & Moon series, released 2018/05/04. Prices are TCGplayer market values and move daily; graded copies sell above them. The full list is on the Forbidden Light card list.

Most valuable Forbidden Light cards
#	Card	No.	Rarity	Market
1	Lucario-GX	135/131	Rare Rainbow	$115.80
2	Greninja-GX	133/131	Rare Rainbow	$109.33
3	Dialga-GX	138/131	Rare Rainbow	$75.36
4	Xerneas-GX	139/131	Rare Rainbow	$60.95
5	Greninja-GX	120/131	Rare Ultra	$57.35
6	Zygarde-GX	136/131	Rare Rainbow	$57.09
7	Yveltal-GX	137/131	Rare Rainbow	$45.36
8	Ultra Necrozma-GX	140/131	Rare Rainbow	$42.86
9	Diantha	130/131	Rare Ultra	$42.03
10	Palkia-GX	132/131	Rare Rainbow	$40.98
11	Energy Recycler	143/131	Rare Secret	$35.19
12	Dialga-GX	125/131	Rare Ultra	$34.53
13	Lucario-GX	122/131	Rare Ultra	$31.57
14	Bonnie	128/131	Rare Ultra	$26.30
15	Xerneas-GX	126/131	Rare Ultra	$25.33
16	Ultra Necrozma-GX	127/131	Rare Ultra	$25.10
17	Zygarde-GX	123/131	Rare Ultra	$23.52
18	Unit Energy FightingDarknessFairy	146/131	Rare Secret	$22.38
19	Mysterious Treasure	145/131	Rare Secret	$19.57
20	Greninja-GX	24/131	Rare Holo GX	$19.32
21	Ultra Recon Squad	131/131	Rare Ultra	$18.81
22	Palkia-GX	119/131	Rare Ultra	$18.79
23	Yveltal-GX	124/131	Rare Ultra	$18.47
24	Naganadel-GX	134/131	Rare Rainbow	$18.26
25	Arceus ◇	96/131	Rare Prism Star	$15.97

See the most valuable card of every set and how to price your own copy.