Sephara, Sky's Blade [Core Set 2020 Prerelease Promos] Celebration Cards then repeats this process until

then repeats this process until a creature card or X cards have been put into their graveyard this way

Set: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {X}{X} Chalice of the Void enters the battlefield with X charge counters on it

sacrifice it

If you do and they guessed wrong

Sephara, Sky's Blade [Core Set 2020 Prerelease Promos] Celebration Cards then repeats this process untilSet: Core Set 2020 Prerelease Promos Type: Legendary Creature Angel Rarity: Rare Cost: {4}{W}{W}{W} You may pay {W} and tap four untapped creatures you control with flying rather than pay this spell's mana cost. Flying, lifelink Other creatures you control with flying have indestructible. (Damage and effects that say "destroy" don't destroy them.)