Tyrant's Scorn [War of the Spark] Dog Warrior they may reveal those cards

they may reveal those cards and note they have constructed their version of that location

Whenever Kappa Cannoneer or another artifact enters the battlefield under your control

Ephara isn't a creature

Set: Mystery Booster Type: Creature — Lizard Rarity: Common Cost: {2}{R} Thresher Lizard gets +1/+2 as long as you have one or fewer cards in hand

you're not in trouble

Tyrant's Scorn [War of the Spark] Dog Warrior they may reveal those cardsSet: War of the Spark Type: Instant Rarity: Uncommon Cost: {U}{B} Choose one Destroy target creature with mana value 3 or less. Return target creature to its owner's hand. "The hero with the magic sword slays the dragon? Not this time." Nicol Bolas