Leyline of Anticipation

If this card is in your opening hand, you may begin the game with it on the battlefield.
You may cast spells as though they had flash.

"A glowing spring appeared before her, promising untold wisdom. Still she walked on."
—*The Nameless Knight of Summer*

Wilds of Eldraine: Enchanting Tales

If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield.
You may cast spells as though they had flash.

Commander Legends: Battle for Baldur's Gate

Core Set 2020

Core Set 2020 Promos

A player's "opening hand" is the hand of cards the player has after all players have taken mulligans. If players have any cards in hand that allow actions to be taken with them from a player's opening hand, the starting player takes all such actions first in any order, followed by each other player in turn order. Then the first turn begins.