The Mirari Conjecture [Dominaria] Cleric Avatar Voice of Thunder's power and

Voice of Thunder's power and toughness are each equal to the number of cards in your hand

where X is the number of Islands you control

You may cast spells with the same name as this spell from among those cards without paying their mana costs

Set: Scars of Mirrodin Type: Sorcery Rarity: Uncommon Cost: {X}{B}{B} Each opponent loses X life

For each card exiled this way

The Mirari Conjecture [Dominaria] Cleric Avatar Voice of Thunder's power andSet: Dominaria Type: Enchantment Saga Rarity: Rare Cost: {4}{U} (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I Return target instant card from your graveyard to your hand. II Return target sorcery card from your graveyard to your hand. III Until end of turn, whenever you cast an instant or sorcery spell, copy it. You may choose new targets for the copy.