Siren's Call [30th Anniversary Edition] Avatar Demon there is an additional beginning

there is an additional beginning phase after this phase

Set: Phyrexia: All Will Be One Commander Type: Instant Rarity: Rare Cost: {2}{W} If you control a commander

Remove a charge counter from Reckoner Bankbuster: Draw a card

You may cast sorcery spells as though they had flash

" —Melira

Siren's Call [30th Anniversary Edition] Avatar Demon there is an additional beginningSet: 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.