Opalescence [Urza's Destiny] Sphinx and that player can't activate

and that player can't activate abilities that aren't mana abilities

Prevent all damage that would be dealt to him this turn

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {3}{U}{U} You may pay 1 life and exile a blue card from your hand rather than pay this spell's mana cost

Set: Weatherlight Type: Instant Rarity: Rare Cost: {1}{W} Until end of turn

From Gaea grew the world's elves

Opalescence [Urza's Destiny] Sphinx and that player can't activateSet: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {2}{W}{W} Each other non Aura enchantment is a creature in addition to its other types and has base power and base toughness each equal to its mana value.