Siren's Call (Retro) [30th Anniversary Edition] 181 " (You may cast instant

" (You may cast instant and sorcery cards from your graveyard by discarding a land card in addition to paying their other costs

Looks more like a shawl of branches to me

then shuffle your library

it becomes day next turn

) Once per Turn Action - 0: Attack While Ursur is attacking a hero with 1 or more cards in their soul

Siren's Call (Retro) [30th Anniversary Edition] 181 " (You may cast instantSet: 30th Anniversary Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn, before attackers are declared. Creatures the active player controls attack this turn if able. At the beginning of the next end step, destroy all non Wall creatures that player controls that didn't attack this turn. Ignore this effect for each creature the player didn't control continuously since the beginning of the turn.