Karn, the Great Creator (Promo Pack) [War of the Spark Promos] Moonfolk Wizard Set: Commander 2018 Type: Enchantment

Set: Commander 2018 Type: Enchantment Creature — Giant Rarity: Rare Cost: {6}{G} Constellation — Whenever Nylea's Colossus or another enchantment enters the battlefield under your control

you may cast up to one target instant or sorcery card from that player's graveyard without paying its mana cost

if no opponent cast a spell since your last turn ended

but obviously certain other things can

Karn, the Great Creator (Promo Pack) [War of the Spark Promos] Moonfolk Wizard Set: Commander 2018 Type: EnchantmentSet: War of the Spark Promos Type: Legendary Planeswalker Karn Rarity: Rare Cost: {4} 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.