Omastar across sets & languages(27)

• Arceus23/99$2.42
• Crossing the Ruins...#575442JP$1.75
• DP4: Moonlit Pursuit#606780JP$2.02
• Fossil40/62$1.99
• Holon Phantom027/052JP$14.39
• Holon Phantoms13/110$11.98
• Legend Maker23/92$2.32
• Legendary Collection058/110$2.27
• Magma VS Aqua: Two Ambitions024/080JP$8.59
• Majestic Dawn26/100$2.34
• Mirage Forest024/086JP$8.15
• Mystery of the Fossils#575705JP$2.44
• Neo Discovery43/75$1.53
• Power Keepers20/108$2.00
• Pt4: Advent of Arceus023/090JP$2.24
• SM - Team Up76/181$1.36
• SM9: Tag Bolt057/095JP$1.99
• SV2a: Pokemon Card 151139/165JP$2.04
• SV2a: Pokemon Card 151139/165JP$1.78
• SV2a: Pokemon Card 151139/165JP$12.50
• SV: Scarlet & Violet 151139/165$1.30
• Sandstorm19/100$2.71
• Skyridge023/144$29.27
• Split Earth029/088JP$13.79
• World Champions Pack017/108JP$9.99
• XY - Fates Collide18/124$0.69
• XY10: Awakening Psychic King016/078JP$2.69

Same name, other languages or different rules text. Same-language reprints already sit in Printings above.