This card was printed in the following sets:

Card Name: Symbol Set Block
Lightning Helix Ravnica: City of Guilds (Uncommon) Ravnica: City of Guilds Ravnica Block
Lightning Helix Duel Decks: Ajani vs. Nicol Bolas (Uncommon) Duel Decks: Ajani vs. Nicol Bolas Miscellaneous
Lightning Helix Modern Masters (Uncommon) Modern Masters Miscellaneous
Lightning Helix Duel Decks: Speed vs. Cunning (Uncommon) Duel Decks: Speed vs. Cunning Miscellaneous
Lightning Helix Iconic Masters (Uncommon) Iconic Masters General
Lightning Helix Explorers of Ixalan (Uncommon) Explorers of Ixalan Miscellaneous
Lightning Helix Guild Kit: Boros (Uncommon) Guild Kit: Boros Miscellaneous
Lightning Helix Strixhaven Mystical Archive (Rare) Strixhaven Mystical Archive
Lightning Helix Planechase (Uncommon) Planechase Miscellaneous

This card has restrictions in the following formats:

Format Legality
Modern Legal
Legacy Legal
Vintage Legal
Commander Legal
x For more information regarding each format and play style modifications, visit the Banned / Restricted Lists for DCI-Sanctioned Tournaments page on the Magic: The Gathering website.

Gatherer works better in the Companion app!