Karn, the Great Creator Condition:Excellent Discard a card: Prognostic Sphinx

Discard a card: Prognostic Sphinx gains hexproof until end of turn

create a 1/1 colorless Eldrazi Scion creature token for each nontoken creature that died under your control this turn

Sphinx's Revelation

assuming someone else doesn't take the action first

the traitor and the heretic

Karn, the Great Creator Condition:Excellent Discard a card: Prognostic SphinxKarn, the Great Creator Legendary Planeswalker Karn Activated abilities of artifacts your opponents control can't be activated. +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. 2: You may reveal an artifact card you own from outside the game or choose a face up artifact card you own in exile. Put that card into your hand. Set: War of the Spark Promos