Palladia-Mors, the Ruiner [Core Set 2019 Prerelease Promos] XY87 that player can't cast spells

that player can't cast spells or activate abilities and plays with their hand revealed

you may reveal it

Set: Masters 25 Type: Enchantment Rarity: Rare Cost: {1}{W} At the beginning of each opponent's end step

(Mana symbols on that permanent remain unchanged

Palladia-Mors, the Ruiner [Core Set 2019 Prerelease Promos] XY87 that player can't cast spellsSet: Core Set 2019 Prerelease Promos Type: Legendary Creature Elder Dragon Rarity: Mythic Cost: {3}{R}{G}{W} Flying, vigilance, trample Palladia Mors, the Ruiner has hexproof if it hasn't dealt damage yet. Sister of Nicol Bolas. Survivor of the Elder Dragon War. The most vicious of her kin.